97648951 has 2 divisors, whose sum is σ = 97648952. Its totient is φ = 97648950.

The previous prime is 97648933. The next prime is 97648963. The reversal of 97648951 is 15984679.

It is a strong prime.

It is an emirp because it is prime and its reverse (15984679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97648951 - 2¹³ = 97640759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97648895 and 97648904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97648981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48824475 + 48824476.

It is an arithmetic number, because the mean of its divisors is an integer number (48824476).

Almost surely, 2^97648951 is an apocalyptic number.

97648951 is a deficient number, since it is larger than the sum of its proper divisors (1).

97648951 is an equidigital number, since it uses as much as digits as its factorization.

97648951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 97648951 is about 9881.7483776911. The cubic root of 97648951 is about 460.4924640859.

The spelling of 97648951 in words is "ninety-seven million, six hundred forty-eight thousand, nine hundred fifty-one".