97896649 has 4 divisors (see below), whose sum is σ = 98072964. Its totient is φ = 97720336.

The previous prime is 97896641. The next prime is 97896653. The reversal of 97896649 is 94669879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94669879 = 109 ⋅868531.

It can be written as a sum of positive squares in 2 ways, for example, as 60295225 + 37601424 = 7765^2 + 6132^2 .

It is a cyclic number.

It is not a de Polignac number, because 97896649 - 2³ = 97896641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97896593 and 97896602.

It is not an unprimeable number, because it can be changed into a prime (97896641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87322 + ... + 88435.

It is an arithmetic number, because the mean of its divisors is an integer number (24518241).

Almost surely, 2^97896649 is an apocalyptic number.

It is an amenable number.

97896649 is a deficient number, since it is larger than the sum of its proper divisors (176315).

97896649 is a wasteful number, since it uses less digits than its factorization.

97896649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176314.

The product of its digits is 5878656, while the sum is 58.

The square root of 97896649 is about 9894.2735458446. The cubic root of 97896649 is about 460.8814996810.

The spelling of 97896649 in words is "ninety-seven million, eight hundred ninety-six thousand, six hundred forty-nine".