3172987623 has 16 divisors (see below), whose sum is σ = 4642051680. Its totient is φ = 1915764864.

The previous prime is 3172987607. The next prime is 3172987667. The reversal of 3172987623 is 3267892713.

It is not a de Polignac number, because 3172987623 - 2⁴ = 3172987607 is a prime.

It is a super-2 number, since 2×3172987623² = 20135700911422380258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172987603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765468 + ... + 769601.

It is an arithmetic number, because the mean of its divisors is an integer number (290128230).

Almost surely, 2^3172987623 is an apocalyptic number.

3172987623 is a deficient number, since it is larger than the sum of its proper divisors (1469064057).

3172987623 is a wasteful number, since it uses less digits than its factorization.

3172987623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535138.

The product of its digits is 762048, while the sum is 48.

The square root of 3172987623 is about 56329.2785592005. The cubic root of 3172987623 is about 1469.4544419143.

The spelling of 3172987623 in words is "three billion, one hundred seventy-two million, nine hundred eighty-seven thousand, six hundred twenty-three".