747997236 has 36 divisors (see below), whose sum is σ = 2160881632. Its totient is φ = 213713424.

The previous prime is 747997231. The next prime is 747997241. The reversal of 747997236 is 632799747.

It is an interprime number because it is at equal distance from previous prime (747997231) and next prime (747997241).

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747997231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1483870 + ... + 1484373.

Almost surely, 2^747997236 is an apocalyptic number.

It is an amenable number.

747997236 is an abundant number, since it is smaller than the sum of its proper divisors (1412884396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747997236 is a wasteful number, since it uses less digits than its factorization.

747997236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968260 (or 2968255 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The square root of 747997236 is about 27349.5381313835. The cubic root of 747997236 is about 907.7508502176.

The spelling of 747997236 in words is "seven hundred forty-seven million, nine hundred ninety-seven thousand, two hundred thirty-six".