24073981 has 2 divisors, whose sum is σ = 24073982. Its totient is φ = 24073980.

The previous prime is 24073979. The next prime is 24073997. The reversal of 24073981 is 18937042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23921881 + 152100 = 4891^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 24073981 - 2¹ = 24073979 is a prime.

It is a super-2 number, since 2×24073981² = 1159113122376722, which contains 22 as substring.

Together with 24073979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24073381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12036990 + 12036991.

It is an arithmetic number, because the mean of its divisors is an integer number (12036991).

Almost surely, 2^24073981 is an apocalyptic number.

It is an amenable number.

24073981 is a deficient number, since it is larger than the sum of its proper divisors (1).

24073981 is an equidigital number, since it uses as much as digits as its factorization.

24073981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 24073981 is about 4906.5243299101. The cubic root of 24073981 is about 288.7459963339.

The spelling of 24073981 in words is "twenty-four million, seventy-three thousand, nine hundred eighty-one".