97818982 has 4 divisors (see below), whose sum is σ = 146728476. Its totient is φ = 48909490.

The previous prime is 97818961. The next prime is 97818983. The reversal of 97818982 is 28981879.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97818983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24454744 + ... + 24454747.

It is an arithmetic number, because the mean of its divisors is an integer number (36682119).

Almost surely, 2^97818982 is an apocalyptic number.

97818982 is a deficient number, since it is larger than the sum of its proper divisors (48909494).

97818982 is a wasteful number, since it uses less digits than its factorization.

97818982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48909493.

The product of its digits is 580608, while the sum is 52.

The square root of 97818982 is about 9890.3479210794. The cubic root of 97818982 is about 460.7595862341.

The spelling of 97818982 in words is "ninety-seven million, eight hundred eighteen thousand, nine hundred eighty-two".