87713457 has 8 divisors (see below), whose sum is σ = 125947584. Its totient is φ = 53977488.

The previous prime is 87713453. The next prime is 87713501. The reversal of 87713457 is 75431778.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87713457 - 2² = 87713453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87713453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1124493 + ... + 1124570.

It is an arithmetic number, because the mean of its divisors is an integer number (15743448).

Almost surely, 2^87713457 is an apocalyptic number.

It is an amenable number.

87713457 is a deficient number, since it is larger than the sum of its proper divisors (38234127).

87713457 is a wasteful number, since it uses less digits than its factorization.

87713457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249079.

The product of its digits is 164640, while the sum is 42.

The square root of 87713457 is about 9365.5462734429. The cubic root of 87713457 is about 444.3127159448.

The spelling of 87713457 in words is "eighty-seven million, seven hundred thirteen thousand, four hundred fifty-seven".