23349961 has 2 divisors, whose sum is σ = 23349962. Its totient is φ = 23349960.

The previous prime is 23349943. The next prime is 23349973. The reversal of 23349961 is 16994332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16353936 + 6996025 = 4044^2 + 2645^2 .

It is a cyclic number.

It is not a de Polignac number, because 23349961 - 2¹¹ = 23347913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23349961.

It is not a weakly prime, because it can be changed into another prime (23341961) 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 as a sum of consecutive naturals, namely, 11674980 + 11674981.

It is an arithmetic number, because the mean of its divisors is an integer number (11674981).

Almost surely, 2^23349961 is an apocalyptic number.

It is an amenable number.

23349961 is a deficient number, since it is larger than the sum of its proper divisors (1).

23349961 is an equidigital number, since it uses as much as digits as its factorization.

23349961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 23349961 is about 4832.1797358956. The cubic root of 23349961 is about 285.8218240787.

It can be divided in two parts, 23349 and 961, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 23349961 in words is "twenty-three million, three hundred forty-nine thousand, nine hundred sixty-one".