747412981 has 4 divisors (see below), whose sum is σ = 854186272. Its totient is φ = 640639692.

The previous prime is 747412961. The next prime is 747413021. The reversal of 747412981 is 189214747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 747412981 - 2¹⁵ = 747380213 is a prime.

It is a super-3 number, since 3×747412981³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747412921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53386635 + ... + 53386648.

It is an arithmetic number, because the mean of its divisors is an integer number (213546568).

Almost surely, 2^747412981 is an apocalyptic number.

It is an amenable number.

747412981 is a deficient number, since it is larger than the sum of its proper divisors (106773291).

747412981 is a wasteful number, since it uses less digits than its factorization.

747412981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106773290.

The product of its digits is 112896, while the sum is 43.

The square root of 747412981 is about 27338.8547858172. The cubic root of 747412981 is about 907.5144428739.

The spelling of 747412981 in words is "seven hundred forty-seven million, four hundred twelve thousand, nine hundred eighty-one".