23427697 has 12 divisors (see below), whose sum is σ = 24453660. Its totient is φ = 22441536.

The previous prime is 23427641. The next prime is 23427707. The reversal of 23427697 is 79672432.

It can be written as a sum of positive squares in 6 ways, for example, as 4426816 + 19000881 = 2104^2 + 4359^2 .

It is not a de Polignac number, because 23427697 - 2¹⁵ = 23394929 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23427617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149143 + ... + 149299.

It is an arithmetic number, because the mean of its divisors is an integer number (2037805).

Almost surely, 2^23427697 is an apocalyptic number.

It is an amenable number.

23427697 is a deficient number, since it is larger than the sum of its proper divisors (1025963).

23427697 is a wasteful number, since it uses less digits than its factorization.

23427697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 303 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 23427697 is about 4840.2166273835. The cubic root of 23427697 is about 286.1386559322.

The spelling of 23427697 in words is "twenty-three million, four hundred twenty-seven thousand, six hundred ninety-seven".