87416431 has 12 divisors (see below), whose sum is σ = 93610440. Its totient is φ = 81610880.

The previous prime is 87416429. The next prime is 87416437. The reversal of 87416431 is 13461478.

It is a happy number.

It is not a de Polignac number, because 87416431 - 2¹ = 87416429 is a prime.

It is a super-2 number, since 2×87416431² = 15283264817555522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87416437) 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, 36705 + ... + 39013.

It is an arithmetic number, because the mean of its divisors is an integer number (7800870).

Almost surely, 2^87416431 is an apocalyptic number.

87416431 is a deficient number, since it is larger than the sum of its proper divisors (6194009).

87416431 is a wasteful number, since it uses less digits than its factorization.

87416431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474 (or 2457 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 87416431 is about 9349.6754489127. The cubic root of 87416431 is about 443.8106201387.

The spelling of 87416431 in words is "eighty-seven million, four hundred sixteen thousand, four hundred thirty-one".