87920774 has 8 divisors (see below), whose sum is σ = 136135488. Its totient is φ = 42542280.

The previous prime is 87920773. The next prime is 87920783. The reversal of 87920774 is 47702978.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87920773) 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, 708977 + ... + 709100.

It is an arithmetic number, because the mean of its divisors is an integer number (17016936).

Almost surely, 2^87920774 is an apocalyptic number.

87920774 is a deficient number, since it is larger than the sum of its proper divisors (48214714).

87920774 is a wasteful number, since it uses less digits than its factorization.

87920774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418110.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 87920774 is about 9376.6078087974. The cubic root of 87920774 is about 444.6624954248.

The spelling of 87920774 in words is "eighty-seven million, nine hundred twenty thousand, seven hundred seventy-four".