97942428 has 18 divisors (see below), whose sum is σ = 247576784. Its totient is φ = 32647464.

The previous prime is 97942417. The next prime is 97942447. The reversal of 97942428 is 82424979.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1360276 + ... + 1360347.

Almost surely, 2^97942428 is an apocalyptic number.

It is an amenable number.

97942428 is an abundant number, since it is smaller than the sum of its proper divisors (149634356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97942428 is a wasteful number, since it uses less digits than its factorization.

97942428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720633 (or 2720628 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 97942428 is about 9896.5866843069. The cubic root of 97942428 is about 460.9533285144.

The spelling of 97942428 in words is "ninety-seven million, nine hundred forty-two thousand, four hundred twenty-eight".