726402887 has 8 divisors (see below), whose sum is σ = 831470976. Its totient is φ = 621658872.

The previous prime is 726402841. The next prime is 726402899. The reversal of 726402887 is 788204627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726402887 - 2¹⁶ = 726337351 is a prime.

It is a super-2 number, since 2×726402887² = 1055322308483869538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726402587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76193 + ... + 85194.

It is an arithmetic number, because the mean of its divisors is an integer number (103933872).

Almost surely, 2^726402887 is an apocalyptic number.

726402887 is a deficient number, since it is larger than the sum of its proper divisors (105068089).

726402887 is a wasteful number, since it uses less digits than its factorization.

726402887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162037.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 726402887 is about 26951.8624031810. The cubic root of 726402887 is about 898.9299575102.

The spelling of 726402887 in words is "seven hundred twenty-six million, four hundred two thousand, eight hundred eighty-seven".