97621423 has 2 divisors, whose sum is σ = 97621424. Its totient is φ = 97621422.

The previous prime is 97621421. The next prime is 97621457. The reversal of 97621423 is 32412679.

It is an a-pointer prime, because the next prime (97621457) can be obtained adding 97621423 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97621423 - 2¹ = 97621421 is a prime.

Together with 97621421, 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 (97621421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48810711 + 48810712.

It is an arithmetic number, because the mean of its divisors is an integer number (48810712).

Almost surely, 2^97621423 is an apocalyptic number.

97621423 is a deficient number, since it is larger than the sum of its proper divisors (1).

97621423 is an equidigital number, since it uses as much as digits as its factorization.

97621423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 97621423 is about 9880.3554085873. The cubic root of 97621423 is about 460.4491878814.

The spelling of 97621423 in words is "ninety-seven million, six hundred twenty-one thousand, four hundred twenty-three".