24722749 has 2 divisors, whose sum is σ = 24722750. Its totient is φ = 24722748.

The previous prime is 24722741. The next prime is 24722767. The reversal of 24722749 is 94722742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 2913849 = 4670^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 24722749 - 2³ = 24722741 is a prime.

It is a super-2 number, since 2×24722749² = 1222428636234002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24722741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12361374 + 12361375.

It is an arithmetic number, because the mean of its divisors is an integer number (12361375).

Almost surely, 2^24722749 is an apocalyptic number.

It is an amenable number.

24722749 is a deficient number, since it is larger than the sum of its proper divisors (1).

24722749 is an equidigital number, since it uses as much as digits as its factorization.

24722749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 24722749 is about 4972.1976026703. The cubic root of 24722749 is about 291.3168374301.

The spelling of 24722749 in words is "twenty-four million, seven hundred twenty-two thousand, seven hundred forty-nine".