726402877 has 4 divisors (see below), whose sum is σ = 769132476. Its totient is φ = 683673280.

The previous prime is 726402841. The next prime is 726402899. The reversal of 726402877 is 778204627.

726402877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778204627 = 599 ⋅1299173.

It can be written as a sum of positive squares in 2 ways, for example, as 425761956 + 300640921 = 20634^2 + 17339^2 .

It is a cyclic number.

It is not a de Polignac number, because 726402877 - 2¹⁵ = 726370109 is a prime.

It is a super-2 number, since 2×726402877² = 1055322279427754258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726405877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21364774 + ... + 21364807.

It is an arithmetic number, because the mean of its divisors is an integer number (192283119).

Almost surely, 2^726402877 is an apocalyptic number.

It is an amenable number.

726402877 is a deficient number, since it is larger than the sum of its proper divisors (42729599).

726402877 is a wasteful number, since it uses less digits than its factorization.

726402877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42729598.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 726402877 is about 26951.8622176650. The cubic root of 726402877 is about 898.9299533851.

The spelling of 726402877 in words is "seven hundred twenty-six million, four hundred two thousand, eight hundred seventy-seven".