97455947 has 2 divisors, whose sum is σ = 97455948. Its totient is φ = 97455946.

The previous prime is 97455913. The next prime is 97455961. The reversal of 97455947 is 74955479.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97455947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97455895 and 97455904.

It is not a weakly prime, because it can be changed into another prime (97455977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48727973 + 48727974.

It is an arithmetic number, because the mean of its divisors is an integer number (48727974).

Almost surely, 2^97455947 is an apocalyptic number.

97455947 is a deficient number, since it is larger than the sum of its proper divisors (1).

97455947 is an equidigital number, since it uses as much as digits as its factorization.

97455947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 50.

The square root of 97455947 is about 9871.9778666689. The cubic root of 97455947 is about 460.1888748638.

The spelling of 97455947 in words is "ninety-seven million, four hundred fifty-five thousand, nine hundred forty-seven".