87389679 has 32 divisors (see below), whose sum is σ = 128943360. Its totient is φ = 52316928.

The previous prime is 87389677. The next prime is 87389689. The reversal of 87389679 is 97698378.

It is not a de Polignac number, because 87389679 - 2¹ = 87389677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87389677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 374947 + ... + 375179.

It is an arithmetic number, because the mean of its divisors is an integer number (4029480).

Almost surely, 2^87389679 is an apocalyptic number.

87389679 is a deficient number, since it is larger than the sum of its proper divisors (41553681).

87389679 is a wasteful number, since it uses less digits than its factorization.

87389679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 4572288, while the sum is 57.

The square root of 87389679 is about 9348.2447015469. The cubic root of 87389679 is about 443.7653424835.

The spelling of 87389679 in words is "eighty-seven million, three hundred eighty-nine thousand, six hundred seventy-nine".