23449977 has 12 divisors (see below), whose sum is σ = 34070244. Its totient is φ = 15541920.

The previous prime is 23449957. The next prime is 23449997. The reversal of 23449977 is 77994432.

It is an interprime number because it is at equal distance from previous prime (23449957) and next prime (23449997).

It can be written as a sum of positive squares in 2 ways, for example, as 19900521 + 3549456 = 4461^2 + 1884^2 .

It is not a de Polignac number, because 23449977 - 2⁷ = 23449849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23449927) 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, 5974 + ... + 9087.

It is an arithmetic number, because the mean of its divisors is an integer number (2839187).

Almost surely, 2^23449977 is an apocalyptic number.

It is an amenable number.

23449977 is a deficient number, since it is larger than the sum of its proper divisors (10620267).

23449977 is a wasteful number, since it uses less digits than its factorization.

23449977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15240 (or 15237 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 23449977 is about 4842.5176303241. The cubic root of 23449977 is about 286.2293342060.

It can be divided in two parts, 2344 and 9977, that added together give a palindrome (12321).

The spelling of 23449977 in words is "twenty-three million, four hundred forty-nine thousand, nine hundred seventy-seven".