87422194 has 16 divisors (see below), whose sum is σ = 142601688. Its totient is φ = 40027392.

The previous prime is 87422189. The next prime is 87422197. The reversal of 87422194 is 49122478.

It can be written as a sum of positive squares in 4 ways, for example, as 79441569 + 7980625 = 8913^2 + 2825^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (87422197) 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, 33489 + ... + 36004.

Almost surely, 2^87422194 is an apocalyptic number.

87422194 is a deficient number, since it is larger than the sum of its proper divisors (55179494).

87422194 is a wasteful number, since it uses less digits than its factorization.

87422194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69549.

The product of its digits is 32256, while the sum is 37.

The square root of 87422194 is about 9349.9836363493. The cubic root of 87422194 is about 443.8203727842.

It can be divided in two parts, 87422 and 194, that added together give a square (87616 = 296²).

The spelling of 87422194 in words is "eighty-seven million, four hundred twenty-two thousand, one hundred ninety-four".