726087764 has 6 divisors (see below), whose sum is σ = 1270653594. Its totient is φ = 363043880.

The previous prime is 726087763. The next prime is 726087773. The reversal of 726087764 is 467780627.

It can be written as a sum of positive squares in only one way, i.e., 422631364 + 303456400 = 20558^2 + 17420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726087763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90760967 + ... + 90760974.

It is an arithmetic number, because the mean of its divisors is an integer number (211775599).

Almost surely, 2^726087764 is an apocalyptic number.

It is an amenable number.

726087764 is a deficient number, since it is larger than the sum of its proper divisors (544565830).

726087764 is a wasteful number, since it uses less digits than its factorization.

726087764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181521945 (or 181521943 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 47.

The square root of 726087764 is about 26946.0157351695. The cubic root of 726087764 is about 898.7999495479.

The spelling of 726087764 in words is "seven hundred twenty-six million, eighty-seven thousand, seven hundred sixty-four".