86930618 has 4 divisors (see below), whose sum is σ = 130395930. Its totient is φ = 43465308.

The previous prime is 86930617. The next prime is 86930621. The reversal of 86930618 is 81603968.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 71351809 + 15578809 = 8447^2 + 3947^2 .

It is not an unprimeable number, because it can be changed into a prime (86930617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21732653 + ... + 21732656.

Almost surely, 2^86930618 is an apocalyptic number.

86930618 is a deficient number, since it is larger than the sum of its proper divisors (43465312).

86930618 is a wasteful number, since it uses less digits than its factorization.

86930618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43465311.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 86930618 is about 9323.6590456751. The cubic root of 86930618 is about 442.9869396758.

The spelling of 86930618 in words is "eighty-six million, nine hundred thirty thousand, six hundred eighteen".