747672493 has 4 divisors (see below), whose sum is σ = 747768060. Its totient is φ = 747576928.

The previous prime is 747672487. The next prime is 747672533. The reversal of 747672493 is 394276747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394276747 = 587 ⋅671681.

It can be written as a sum of positive squares in 2 ways, for example, as 183277444 + 564395049 = 13538^2 + 23757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-747672493 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 (747675493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34888 + ... + 52081.

It is an arithmetic number, because the mean of its divisors is an integer number (186942015).

Almost surely, 2^747672493 is an apocalyptic number.

It is an amenable number.

747672493 is a deficient number, since it is larger than the sum of its proper divisors (95567).

747672493 is an equidigital number, since it uses as much as digits as its factorization.

747672493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95566.

The product of its digits is 1778112, while the sum is 49.

The square root of 747672493 is about 27343.6005858775. The cubic root of 747672493 is about 907.6194645249.

The spelling of 747672493 in words is "seven hundred forty-seven million, six hundred seventy-two thousand, four hundred ninety-three".