23487437 has 4 divisors (see below), whose sum is σ = 23550780. Its totient is φ = 23424096.

The previous prime is 23487413. The next prime is 23487467. The reversal of 23487437 is 73478432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13060996 + 10426441 = 3614^2 + 3229^2 .

It is a cyclic number.

It is not a de Polignac number, because 23487437 - 2¹⁴ = 23471053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23487437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23487467) 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, 31112 + ... + 31857.

It is an arithmetic number, because the mean of its divisors is an integer number (5887695).

Almost surely, 2^23487437 is an apocalyptic number.

It is an amenable number.

23487437 is a deficient number, since it is larger than the sum of its proper divisors (63343).

23487437 is an equidigital number, since it uses as much as digits as its factorization.

23487437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63342.

The product of its digits is 112896, while the sum is 38.

The square root of 23487437 is about 4846.3839096795. The cubic root of 23487437 is about 286.3816647972.

The spelling of 23487437 in words is "twenty-three million, four hundred eighty-seven thousand, four hundred thirty-seven".