97723945 has 16 divisors (see below), whose sum is σ = 128140992. Its totient is φ = 70954560.

The previous prime is 97723943. The next prime is 97723949. The reversal of 97723945 is 54932779.

It is not a de Polignac number, because 97723945 - 2¹ = 97723943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97723895 and 97723904.

It is not an unprimeable number, because it can be changed into a prime (97723943) 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 15 ways as a sum of consecutive naturals, for example, 45874 + ... + 47956.

It is an arithmetic number, because the mean of its divisors is an integer number (8008812).

Almost surely, 2^97723945 is an apocalyptic number.

It is an amenable number.

97723945 is a deficient number, since it is larger than the sum of its proper divisors (30417047).

97723945 is a wasteful number, since it uses less digits than its factorization.

97723945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952.

The product of its digits is 476280, while the sum is 46.

The square root of 97723945 is about 9885.5422208395. The cubic root of 97723945 is about 460.6103193712.

The spelling of 97723945 in words is "ninety-seven million, seven hundred twenty-three thousand, nine hundred forty-five".