23977001 has 2 divisors, whose sum is σ = 23977002. Its totient is φ = 23977000.

The previous prime is 23976973. The next prime is 23977013. The reversal of 23977001 is 10077932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 2027776 = 4685^2 + 1424^2 .

It is a cyclic number.

It is not a de Polignac number, because 23977001 - 2⁶ = 23976937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23977081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11988500 + 11988501.

It is an arithmetic number, because the mean of its divisors is an integer number (11988501).

Almost surely, 2^23977001 is an apocalyptic number.

It is an amenable number.

23977001 is a deficient number, since it is larger than the sum of its proper divisors (1).

23977001 is an equidigital number, since it uses as much as digits as its factorization.

23977001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 23977001 is about 4896.6315973330. The cubic root of 23977001 is about 288.3577448973.

The spelling of 23977001 in words is "twenty-three million, nine hundred seventy-seven thousand, one".