7231987953 has 12 divisors (see below), whose sum is σ = 10623259920. Its totient is φ = 4739607576.

The previous prime is 7231987943. The next prime is 7231987963. The reversal of 7231987953 is 3597891327.

It is an interprime number because it is at equal distance from previous prime (7231987943) and next prime (7231987963).

It is not a de Polignac number, because 7231987953 - 2⁴ = 7231987937 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7231987953.

It is not an unprimeable number, because it can be changed into a prime (7231987913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6809251 + ... + 6810312.

It is an arithmetic number, because the mean of its divisors is an integer number (885271660).

Almost surely, 2^7231987953 is an apocalyptic number.

It is an amenable number.

7231987953 is a deficient number, since it is larger than the sum of its proper divisors (3391271967).

7231987953 is a wasteful number, since it uses less digits than its factorization.

7231987953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13619628 (or 13619625 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 7231987953 is about 85041.0956714458. The cubic root of 7231987953 is about 1933.8341770557.

The spelling of 7231987953 in words is "seven billion, two hundred thirty-one million, nine hundred eighty-seven thousand, nine hundred fifty-three".