97928783 has 12 divisors (see below), whose sum is σ = 101929464. Its totient is φ = 94078800.

The previous prime is 97928773. The next prime is 97928801. The reversal of 97928783 is 38782979.

It is not a de Polignac number, because 97928783 - 2⁴ = 97928767 is a prime.

It is a super-2 number, since 2×97928783² = 19180093079722178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97928773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173660 + ... + 174222.

It is an arithmetic number, because the mean of its divisors is an integer number (8494122).

Almost surely, 2^97928783 is an apocalyptic number.

97928783 is a deficient number, since it is larger than the sum of its proper divisors (4000681).

97928783 is a wasteful number, since it uses less digits than its factorization.

97928783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 775 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 97928783 is about 9895.8972811969. The cubic root of 97928783 is about 460.9319213796.

The spelling of 97928783 in words is "ninety-seven million, nine hundred twenty-eight thousand, seven hundred eighty-three".