23507977 has 4 divisors (see below), whose sum is σ = 23556736. Its totient is φ = 23459220.

The previous prime is 23507969. The next prime is 23507989. The reversal of 23507977 is 77970532.

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.

It is a cyclic number.

It is not a de Polignac number, because 23507977 - 2³ = 23507969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23507917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23649 + ... + 24622.

It is an arithmetic number, because the mean of its divisors is an integer number (5889184).

Almost surely, 2^23507977 is an apocalyptic number.

It is an amenable number.

23507977 is a deficient number, since it is larger than the sum of its proper divisors (48759).

23507977 is an equidigital number, since it uses as much as digits as its factorization.

23507977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758.

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 23507977 is about 4848.5025523351. The cubic root of 23507977 is about 286.4651216898.

The spelling of 23507977 in words is "twenty-three million, five hundred seven thousand, nine hundred seventy-seven".