89942407 has 2 divisors, whose sum is σ = 89942408. Its totient is φ = 89942406.

The previous prime is 89942401. The next prime is 89942423. The reversal of 89942407 is 70424998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89942407 - 2²³ = 81553799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89942401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44971203 + 44971204.

It is an arithmetic number, because the mean of its divisors is an integer number (44971204).

Almost surely, 2^89942407 is an apocalyptic number.

89942407 is a deficient number, since it is larger than the sum of its proper divisors (1).

89942407 is an equidigital number, since it uses as much as digits as its factorization.

89942407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 89942407 is about 9483.7970771205. The cubic root of 89942407 is about 448.0448625752.

The spelling of 89942407 in words is "eighty-nine million, nine hundred forty-two thousand, four hundred seven".