87472001 has 4 divisors (see below), whose sum is σ = 87494400. Its totient is φ = 87449604.

The previous prime is 87471997. The next prime is 87472003. The reversal of 87472001 is 10027478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87472001 - 2² = 87471997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87472003) 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, 3641 + ... + 13718.

It is an arithmetic number, because the mean of its divisors is an integer number (21873600).

Almost surely, 2^87472001 is an apocalyptic number.

It is an amenable number.

87472001 is a deficient number, since it is larger than the sum of its proper divisors (22399).

87472001 is a wasteful number, since it uses less digits than its factorization.

87472001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22398.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 87472001 is about 9352.6467376887. The cubic root of 87472001 is about 443.9046426307.

Adding to 87472001 its reverse (10027478), we get a palindrome (97499479).

The spelling of 87472001 in words is "eighty-seven million, four hundred seventy-two thousand, one".