388960537 has 4 divisors (see below), whose sum is σ = 444526336. Its totient is φ = 333394740.

The previous prime is 388960511. The next prime is 388960541. The reversal of 388960537 is 735069883.

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 388960537 - 2²⁷ = 254742809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388963537) 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, 27782889 + ... + 27782902.

It is an arithmetic number, because the mean of its divisors is an integer number (111131584).

Almost surely, 2^388960537 is an apocalyptic number.

It is an amenable number.

388960537 is a deficient number, since it is larger than the sum of its proper divisors (55565799).

388960537 is an equidigital number, since it uses as much as digits as its factorization.

388960537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55565798.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 388960537 is about 19722.0824711794. The cubic root of 388960537 is about 729.9646802202.

The spelling of 388960537 in words is "three hundred eighty-eight million, nine hundred sixty thousand, five hundred thirty-seven".