24736421 has 2 divisors, whose sum is σ = 24736422. Its totient is φ = 24736420.

The previous prime is 24736409. The next prime is 24736427. The reversal of 24736421 is 12463742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 2927521 = 4670^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 24736421 - 2¹⁴ = 24720037 is a prime.

It is a super-2 number, since 2×24736421² = 1223781047778482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24736427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12368210 + 12368211.

It is an arithmetic number, because the mean of its divisors is an integer number (12368211).

Almost surely, 2^24736421 is an apocalyptic number.

It is an amenable number.

24736421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24736421 is an equidigital number, since it uses as much as digits as its factorization.

24736421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 24736421 is about 4973.5722574423. The cubic root of 24736421 is about 291.3705281939.

The spelling of 24736421 in words is "twenty-four million, seven hundred thirty-six thousand, four hundred twenty-one".