8747391738 has 16 divisors (see below), whose sum is σ = 17921486016. Its totient is φ = 2844680160.

The previous prime is 8747391727. The next prime is 8747391767. The reversal of 8747391738 is 8371937478.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17779006 + ... + 17779497.

It is an arithmetic number, because the mean of its divisors is an integer number (1120092876).

Almost surely, 2^8747391738 is an apocalyptic number.

8747391738 is an abundant number, since it is smaller than the sum of its proper divisors (9174094278).

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

8747391738 is a wasteful number, since it uses less digits than its factorization.

8747391738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35558549.

The product of its digits is 7112448, while the sum is 57.

The square root of 8747391738 is about 93527.4918834029. The cubic root of 8747391738 is about 2060.4378792357.

The spelling of 8747391738 in words is "eight billion, seven hundred forty-seven million, three hundred ninety-one thousand, seven hundred thirty-eight".