23491477 has 2 divisors, whose sum is σ = 23491478. Its totient is φ = 23491476.

The previous prime is 23491471. The next prime is 23491513. The reversal of 23491477 is 77419432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15046641 + 8444836 = 3879^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 23491477 - 2³ = 23491469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23491471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11745738 + 11745739.

It is an arithmetic number, because the mean of its divisors is an integer number (11745739).

Almost surely, 2^23491477 is an apocalyptic number.

It is an amenable number.

23491477 is a deficient number, since it is larger than the sum of its proper divisors (1).

23491477 is an equidigital number, since it uses as much as digits as its factorization.

23491477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 23491477 is about 4846.8006973673. The cubic root of 23491477 is about 286.3980837249.

The spelling of 23491477 in words is "twenty-three million, four hundred ninety-one thousand, four hundred seventy-seven".