97880949 has 12 divisors (see below), whose sum is σ = 141715756. Its totient is φ = 65100672.

The previous prime is 97880933. The next prime is 97880953. The reversal of 97880949 is 94908879.

It can be written as a sum of positive squares in 2 ways, for example, as 31979025 + 65901924 = 5655^2 + 8118^2 .

It is not a de Polignac number, because 97880949 - 2⁴ = 97880933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 97880895 and 97880904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97880929) 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, 8662 + ... + 16455.

Almost surely, 2^97880949 is an apocalyptic number.

It is an amenable number.

97880949 is a deficient number, since it is larger than the sum of its proper divisors (43834807).

97880949 is a wasteful number, since it uses less digits than its factorization.

97880949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556 (or 25553 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 97880949 is about 9893.4801258202. The cubic root of 97880949 is about 460.8568606817.

The spelling of 97880949 in words is "ninety-seven million, eight hundred eighty thousand, nine hundred forty-nine".