87418071 has 24 divisors (see below), whose sum is σ = 136878560. Its totient is φ = 53441856.

The previous prime is 87418061. The next prime is 87418081. The reversal of 87418071 is 17081478.

It is an interprime number because it is at equal distance from previous prime (87418061) and next prime (87418081).

It is not a de Polignac number, because 87418071 - 2⁹ = 87417559 is a prime.

It is a super-2 number, since 2×87418071² = 15283838274722082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87418061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15990 + ... + 20748.

Almost surely, 2^87418071 is an apocalyptic number.

87418071 is a deficient number, since it is larger than the sum of its proper divisors (49460489).

87418071 is a wasteful number, since it uses less digits than its factorization.

87418071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935 (or 4932 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 87418071 is about 9349.7631520804. The cubic root of 87418071 is about 443.8133955317.

The spelling of 87418071 in words is "eighty-seven million, four hundred eighteen thousand, seventy-one".