97923145 has 8 divisors (see below), whose sum is σ = 124420104. Its totient is φ = 73730304.

The previous prime is 97923097. The next prime is 97923157. The reversal of 97923145 is 54132979.

It can be written as a sum of positive squares in 4 ways, for example, as 23687689 + 74235456 = 4867^2 + 8616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97923145 - 2¹³ = 97914953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97923098 and 97923107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575934 + ... + 576103.

It is an arithmetic number, because the mean of its divisors is an integer number (15552513).

Almost surely, 2^97923145 is an apocalyptic number.

It is an amenable number.

97923145 is a deficient number, since it is larger than the sum of its proper divisors (26496959).

97923145 is a wasteful number, since it uses less digits than its factorization.

97923145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152059.

The product of its digits is 68040, while the sum is 40.

The square root of 97923145 is about 9895.6124115691. The cubic root of 97923145 is about 460.9230755498.

The spelling of 97923145 in words is "ninety-seven million, nine hundred twenty-three thousand, one hundred forty-five".