97879761 has 48 divisors (see below), whose sum is σ = 174096000. Its totient is φ = 51715584.

The previous prime is 97879759. The next prime is 97879777. The reversal of 97879761 is 16797879.

It is not a de Polignac number, because 97879761 - 2¹ = 97879759 is a prime.

It is a super-2 number, since 2×97879761² = 19160895226834242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 97879698 and 97879707.

It is not an unprimeable number, because it can be changed into a prime (97879721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62415 + ... + 63963.

It is an arithmetic number, because the mean of its divisors is an integer number (3627000).

Almost surely, 2^97879761 is an apocalyptic number.

It is an amenable number.

97879761 is a deficient number, since it is larger than the sum of its proper divisors (76216239).

97879761 is a wasteful number, since it uses less digits than its factorization.

97879761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638 (or 1635 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 97879761 is about 9893.4200860976. The cubic root of 97879761 is about 460.8549961713.

The spelling of 97879761 in words is "ninety-seven million, eight hundred seventy-nine thousand, seven hundred sixty-one".