747412391 has 8 divisors (see below), whose sum is σ = 815965968. Its totient is φ = 678960000.

The previous prime is 747412373. The next prime is 747412409. The reversal of 747412391 is 193214747.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (747412373) and next prime (747412409).

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 747412391 - 2²⁶ = 680303527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747412091) 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, 9410 + ... + 39791.

It is an arithmetic number, because the mean of its divisors is an integer number (101995746).

Almost surely, 2^747412391 is an apocalyptic number.

747412391 is a deficient number, since it is larger than the sum of its proper divisors (68553577).

747412391 is a wasteful number, since it uses less digits than its factorization.

747412391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50593.

The product of its digits is 42336, while the sum is 38.

The square root of 747412391 is about 27338.8439953119. The cubic root of 747412391 is about 907.5142040797.

The spelling of 747412391 in words is "seven hundred forty-seven million, four hundred twelve thousand, three hundred ninety-one".