2397787992 has 72 divisors (see below), whose sum is σ = 6853862340. Its totient is φ = 757188000.

The previous prime is 2397787979. The next prime is 2397787993. The reversal of 2397787992 is 2997877932.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397787993) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20134 + ... + 72117.

Almost surely, 2^2397787992 is an apocalyptic number.

It is an amenable number.

2397787992 is an abundant number, since it is smaller than the sum of its proper divisors (4456074348).

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

2397787992 is a wasteful number, since it uses less digits than its factorization.

2397787992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92301 (or 92275 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 63.

The square root of 2397787992 is about 48967.2134391983. The cubic root of 2397787992 is about 1338.4544428844.

The spelling of 2397787992 in words is "two billion, three hundred ninety-seven million, seven hundred eighty-seven thousand, nine hundred ninety-two".