87412427 has 4 divisors (see below), whose sum is σ = 87650976. Its totient is φ = 87173880.

The previous prime is 87412411. The next prime is 87412511. The reversal of 87412427 is 72421478.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72421478 = 2 ⋅36210739.

It is a cyclic number.

It is not a de Polignac number, because 87412427 - 2⁴ = 87412411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87412327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118724 + ... + 119457.

It is an arithmetic number, because the mean of its divisors is an integer number (21912744).

Almost surely, 2^87412427 is an apocalyptic number.

87412427 is a deficient number, since it is larger than the sum of its proper divisors (238549).

87412427 is a wasteful number, since it uses less digits than its factorization.

87412427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238548.

The product of its digits is 25088, while the sum is 35.

The square root of 87412427 is about 9349.4613213810. The cubic root of 87412427 is about 443.8038439722.

The spelling of 87412427 in words is "eighty-seven million, four hundred twelve thousand, four hundred twenty-seven".