87401267 has 4 divisors (see below), whose sum is σ = 92542536. Its totient is φ = 82260000.

The previous prime is 87401261. The next prime is 87401269. The reversal of 87401267 is 76210478.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87401267 - 2⁶ = 87401203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87401261) 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, 2570609 + ... + 2570642.

It is an arithmetic number, because the mean of its divisors is an integer number (23135634).

Almost surely, 2^87401267 is an apocalyptic number.

87401267 is a deficient number, since it is larger than the sum of its proper divisors (5141269).

87401267 is a wasteful number, since it uses less digits than its factorization.

87401267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141268.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 87401267 is about 9348.8644765019. The cubic root of 87401267 is about 443.7849562623.

The spelling of 87401267 in words is "eighty-seven million, four hundred one thousand, two hundred sixty-seven".