731357012 has 6 divisors (see below), whose sum is σ = 1279874778. Its totient is φ = 365678504.

The previous prime is 731356963. The next prime is 731357021. The reversal of 731357012 is 210753137.

It can be written as a sum of positive squares in only one way, i.e., 704690116 + 26666896 = 26546^2 + 5164^2 .

It is a super-3 number, since 3×731357012³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91419623 + ... + 91419630.

It is an arithmetic number, because the mean of its divisors is an integer number (213312463).

Almost surely, 2^731357012 is an apocalyptic number.

It is an amenable number.

731357012 is a deficient number, since it is larger than the sum of its proper divisors (548517766).

731357012 is a wasteful number, since it uses less digits than its factorization.

731357012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182839257 (or 182839255 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 731357012 is about 27043.6131461756. The cubic root of 731357012 is about 900.9689202933.

The spelling of 731357012 in words is "seven hundred thirty-one million, three hundred fifty-seven thousand, twelve".