87464194 has 4 divisors (see below), whose sum is σ = 131196294. Its totient is φ = 43732096.

The previous prime is 87464191. The next prime is 87464197. The reversal of 87464194 is 49146478.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (87464191) and next prime (87464197).

It can be written as a sum of positive squares in only one way, i.e., 71182969 + 16281225 = 8437^2 + 4035^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87464194.

It is not an unprimeable number, because it can be changed into a prime (87464191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21866047 + ... + 21866050.

Almost surely, 2^87464194 is an apocalyptic number.

87464194 is a deficient number, since it is larger than the sum of its proper divisors (43732100).

87464194 is a wasteful number, since it uses less digits than its factorization.

87464194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43732099.

The product of its digits is 193536, while the sum is 43.

The square root of 87464194 is about 9352.2293598906. The cubic root of 87464194 is about 443.8914358651.

The spelling of 87464194 in words is "eighty-seven million, four hundred sixty-four thousand, one hundred ninety-four".