24749987 has 2 divisors, whose sum is σ = 24749988. Its totient is φ = 24749986.

The previous prime is 24749981. The next prime is 24750007. The reversal of 24749987 is 78994742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24749987 - 2¹⁸ = 24487843 is a prime.

It is a super-2 number, since 2×24749987² = 1225123713000338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24749981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12374993 + 12374994.

It is an arithmetic number, because the mean of its divisors is an integer number (12374994).

Almost surely, 2^24749987 is an apocalyptic number.

24749987 is a deficient number, since it is larger than the sum of its proper divisors (1).

24749987 is an equidigital number, since it uses as much as digits as its factorization.

24749987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 24749987 is about 4974.9358789838. The cubic root of 24749987 is about 291.4237831389.

The spelling of 24749987 in words is "twenty-four million, seven hundred forty-nine thousand, nine hundred eighty-seven".