87392461 has 16 divisors (see below), whose sum is σ = 101034864. Its totient is φ = 74870784.

The previous prime is 87392453. The next prime is 87392467. The reversal of 87392461 is 16429378.

It can be written as a sum of positive squares in 8 ways, for example, as 5851561 + 81540900 = 2419^2 + 9030^2 .

It is a cyclic number.

It is not a de Polignac number, because 87392461 - 2³ = 87392453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87392467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13425 + ... + 18841.

It is an arithmetic number, because the mean of its divisors is an integer number (6314679).

Almost surely, 2^87392461 is an apocalyptic number.

It is an amenable number.

87392461 is a deficient number, since it is larger than the sum of its proper divisors (13642403).

87392461 is a wasteful number, since it uses less digits than its factorization.

87392461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520.

The product of its digits is 72576, while the sum is 40.

The square root of 87392461 is about 9348.3934983504. The cubic root of 87392461 is about 443.7700514380.

The spelling of 87392461 in words is "eighty-seven million, three hundred ninety-two thousand, four hundred sixty-one".