87397401 has 64 divisors (see below), whose sum is σ = 154828800. Its totient is φ = 42577920.

The previous prime is 87397381. The next prime is 87397403. The reversal of 87397401 is 10479378.

It is not a de Polignac number, because 87397401 - 2⁶ = 87397337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 87397401.

It is not an unprimeable number, because it can be changed into a prime (87397403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194425 + ... + 194873.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^87397401 is an apocalyptic number.

It is an amenable number.

87397401 is a deficient number, since it is larger than the sum of its proper divisors (67431399).

87397401 is a wasteful number, since it uses less digits than its factorization.

87397401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 87397401 is about 9348.6577111369. The cubic root of 87397401 is about 443.7784128868.

The spelling of 87397401 in words is "eighty-seven million, three hundred ninety-seven thousand, four hundred one".