87144794 has 16 divisors (see below), whose sum is σ = 142835616. Its totient is φ = 39546000.

The previous prime is 87144791. The next prime is 87144817. The reversal of 87144794 is 49744178.

It is not an unprimeable number, because it can be changed into a prime (87144791) 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, 11969 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (8927226).

Almost surely, 2^87144794 is an apocalyptic number.

87144794 is a deficient number, since it is larger than the sum of its proper divisors (55690822).

87144794 is a wasteful number, since it uses less digits than its factorization.

87144794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6541.

The product of its digits is 225792, while the sum is 44.

The square root of 87144794 is about 9335.1375994144. The cubic root of 87144794 is about 443.3504455050.

The spelling of 87144794 in words is "eighty-seven million, one hundred forty-four thousand, seven hundred ninety-four".