97420057 has 4 divisors (see below), whose sum is σ = 111337216. Its totient is φ = 83502900.

The previous prime is 97420051. The next prime is 97420079. The reversal of 97420057 is 75002479.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75002479 = 1409 ⋅53231.

It is a cyclic number.

It is not a de Polignac number, because 97420057 - 2⁷ = 97419929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97420051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6958569 + ... + 6958582.

It is an arithmetic number, because the mean of its divisors is an integer number (27834304).

Almost surely, 2^97420057 is an apocalyptic number.

It is an amenable number.

97420057 is a deficient number, since it is larger than the sum of its proper divisors (13917159).

97420057 is a wasteful number, since it uses less digits than its factorization.

97420057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13917158.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 97420057 is about 9870.1599277823. The cubic root of 97420057 is about 460.1323768353.

The spelling of 97420057 in words is "ninety-seven million, four hundred twenty thousand, fifty-seven".