90079982 has 4 divisors (see below), whose sum is σ = 135119976. Its totient is φ = 45039990.

The previous prime is 90079973. The next prime is 90079999. The reversal of 90079982 is 28997009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28997009 = 137 ⋅211657.

It is a super-2 number, since 2×90079982² = 16228806314240648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22519994 + ... + 22519997.

It is an arithmetic number, because the mean of its divisors is an integer number (33779994).

Almost surely, 2^90079982 is an apocalyptic number.

90079982 is a deficient number, since it is larger than the sum of its proper divisors (45039994).

90079982 is a wasteful number, since it uses less digits than its factorization.

90079982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45039993.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 90079982 is about 9491.0474659017. The cubic root of 90079982 is about 448.2731878367.

The spelling of 90079982 in words is "ninety million, seventy-nine thousand, nine hundred eighty-two".