2387690964 has 18 divisors (see below), whose sum is σ = 6035552250. Its totient is φ = 795896976.

The previous prime is 2387690957. The next prime is 2387690989. The reversal of 2387690964 is 4690967832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2357879364 + 29811600 = 48558^2 + 5460^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2387690964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33162339 + ... + 33162410.

Almost surely, 2^2387690964 is an apocalyptic number.

It is an amenable number.

2387690964 is an abundant number, since it is smaller than the sum of its proper divisors (3647861286).

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

2387690964 is a wasteful number, since it uses less digits than its factorization.

2387690964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66324759 (or 66324754 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 2387690964 is about 48864.0047888013. The cubic root of 2387690964 is about 1336.5730663606.

The spelling of 2387690964 in words is "two billion, three hundred eighty-seven million, six hundred ninety thousand, nine hundred sixty-four".