97909642 has 8 divisors (see below), whose sum is σ = 147337632. Its totient is φ = 48797100.

The previous prime is 97909633. The next prime is 97909657. The reversal of 97909642 is 24690979.

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

It is a junction number, because it is equal to n+sod(n) for n = 97909592 and 97909601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78084 + ... + 79327.

It is an arithmetic number, because the mean of its divisors is an integer number (18417204).

Almost surely, 2^97909642 is an apocalyptic number.

97909642 is a deficient number, since it is larger than the sum of its proper divisors (49427990).

97909642 is a wasteful number, since it uses less digits than its factorization.

97909642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157724.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 97909642 is about 9894.9301159735. The cubic root of 97909642 is about 460.9018884226.

The spelling of 97909642 in words is "ninety-seven million, nine hundred nine thousand, six hundred forty-two".