22903957 has 4 divisors (see below), whose sum is σ = 22944780. Its totient is φ = 22863136.

The previous prime is 22903943. The next prime is 22903967. The reversal of 22903957 is 75930922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75930922 = 2 ⋅37965461.

It can be written as a sum of positive squares in 2 ways, for example, as 11874916 + 11029041 = 3446^2 + 3321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22903957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22903967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19558 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (5736195).

Almost surely, 2^22903957 is an apocalyptic number.

It is an amenable number.

22903957 is a deficient number, since it is larger than the sum of its proper divisors (40823).

22903957 is an equidigital number, since it uses as much as digits as its factorization.

22903957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40822.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 22903957 is about 4785.8078732853. The cubic root of 22903957 is about 283.9903000390.

The spelling of 22903957 in words is "twenty-two million, nine hundred three thousand, nine hundred fifty-seven".