747312856 has 8 divisors (see below), whose sum is σ = 1401211620. Its totient is φ = 373656424.

The previous prime is 747312833. The next prime is 747312857. The reversal of 747312856 is 658213747.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747312857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46707046 + ... + 46707061.

Almost surely, 2^747312856 is an apocalyptic number.

It is an amenable number.

747312856 is a deficient number, since it is larger than the sum of its proper divisors (653898764).

747312856 is a wasteful number, since it uses less digits than its factorization.

747312856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93414113 (or 93414109 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 747312856 is about 27337.0235395151. The cubic root of 747312856 is about 907.4739168890.

The spelling of 747312856 in words is "seven hundred forty-seven million, three hundred twelve thousand, eight hundred fifty-six".