97990994 has 8 divisors (see below), whose sum is σ = 153377280. Its totient is φ = 46865236.

The previous prime is 97990993. The next prime is 97991021. The reversal of 97990994 is 49909979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97990993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065074 + ... + 1065165.

It is an arithmetic number, because the mean of its divisors is an integer number (19172160).

Almost surely, 2^97990994 is an apocalyptic number.

97990994 is a deficient number, since it is larger than the sum of its proper divisors (55386286).

97990994 is a wasteful number, since it uses less digits than its factorization.

97990994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130264.

The product of its (nonzero) digits is 1653372, while the sum is 56.

The square root of 97990994 is about 9899.0400544699. The cubic root of 97990994 is about 461.0295057837.

The spelling of 97990994 in words is "ninety-seven million, nine hundred ninety thousand, nine hundred ninety-four".