14977621 has 2 divisors, whose sum is σ = 14977622. Its totient is φ = 14977620.

The previous prime is 14977603. The next prime is 14977639. The reversal of 14977621 is 12677941.

It is a balanced prime because it is at equal distance from previous prime (14977603) and next prime (14977639).

It can be written as a sum of positive squares in only one way, i.e., 13608721 + 1368900 = 3689^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 14977621 - 2¹³ = 14969429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14977661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7488810 + 7488811.

It is an arithmetic number, because the mean of its divisors is an integer number (7488811).

Almost surely, 2^14977621 is an apocalyptic number.

It is an amenable number.

14977621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14977621 is an equidigital number, since it uses as much as digits as its factorization.

14977621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 14977621 is about 3870.0931513337. The cubic root of 14977621 is about 246.4984989218.

The spelling of 14977621 in words is "fourteen million, nine hundred seventy-seven thousand, six hundred twenty-one".