23579977 has 6 divisors (see below), whose sum is σ = 23976654. Its totient is φ = 23189760.

The previous prime is 23579971. The next prime is 23579993. The reversal of 23579977 is 77997532.

It can be written as a sum of positive squares in 3 ways, for example, as 1901641 + 21678336 = 1379^2 + 4656^2 .

It is not a de Polignac number, because 23579977 - 2²³ = 15191369 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 23579977.

It is not an unprimeable number, because it can be changed into a prime (23579971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553 + ... + 6889.

It is an arithmetic number, because the mean of its divisors is an integer number (3996109).

Almost surely, 2^23579977 is an apocalyptic number.

It is an amenable number.

23579977 is a deficient number, since it is larger than the sum of its proper divisors (396677).

23579977 is an frugal number, since it uses more digits than its factorization.

23579977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459 (or 6398 counting only the distinct ones).

The product of its digits is 833490, while the sum is 49.

The square root of 23579977 is about 4855.9218486298. The cubic root of 23579977 is about 286.7572844641.

The spelling of 23579977 in words is "twenty-three million, five hundred seventy-nine thousand, nine hundred seventy-seven".