97908783 has 16 divisors (see below), whose sum is σ = 149399040. Its totient is φ = 55871136.

The previous prime is 97908781. The next prime is 97908823. The reversal of 97908783 is 38780979.

It is a happy number.

It is not a de Polignac number, because 97908783 - 2¹ = 97908781 is a prime.

It is a super-2 number, since 2×97908783² = 19172259577082178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97908781) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14841 + ... + 20397.

It is an arithmetic number, because the mean of its divisors is an integer number (9337440).

Almost surely, 2^97908783 is an apocalyptic number.

97908783 is a deficient number, since it is larger than the sum of its proper divisors (51490257).

97908783 is a wasteful number, since it uses less digits than its factorization.

97908783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 97908783 is about 9894.8867098113. The cubic root of 97908783 is about 460.9005405271.

The spelling of 97908783 in words is "ninety-seven million, nine hundred eight thousand, seven hundred eighty-three".