4715991 has 12 divisors (see below), whose sum is σ = 7785232. Its totient is φ = 2694816.

The previous prime is 4715969. The next prime is 4716001. The reversal of 4715991 is 1995174.

It is not a de Polignac number, because 4715991 - 2⁵ = 4715959 is a prime.

It is a super-2 number, since 2×4715991² = 44481142224162, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4715911) 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, 37366 + ... + 37491.

Almost surely, 2^4715991 is an apocalyptic number.

4715991 is a deficient number, since it is larger than the sum of its proper divisors (3069241).

4715991 is a wasteful number, since it uses less digits than its factorization.

4715991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74870 (or 74867 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 4715991 is about 2171.6332563304. The cubic root of 4715991 is about 167.6966251136.

The spelling of 4715991 in words is "four million, seven hundred fifteen thousand, nine hundred ninety-one".