44699621 has 2 divisors, whose sum is σ = 44699622. Its totient is φ = 44699620.

The previous prime is 44699597. The next prime is 44699651. The reversal of 44699621 is 12699644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23668225 + 21031396 = 4865^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 44699621 - 2¹⁰ = 44698597 is a prime.

It is a super-2 number, since 2×44699621² = 3996112235087282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44699651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22349810 + 22349811.

It is an arithmetic number, because the mean of its divisors is an integer number (22349811).

Almost surely, 2^44699621 is an apocalyptic number.

It is an amenable number.

44699621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44699621 is an equidigital number, since it uses as much as digits as its factorization.

44699621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 44699621 is about 6685.7775164898. Note that the first 3 decimals coincide. The cubic root of 44699621 is about 354.8961436590.

The spelling of 44699621 in words is "forty-four million, six hundred ninety-nine thousand, six hundred twenty-one".