88708421 has 2 divisors, whose sum is σ = 88708422. Its totient is φ = 88708420.

The previous prime is 88708369. The next prime is 88708427. The reversal of 88708421 is 12480788.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79405921 + 9302500 = 8911^2 + 3050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88708421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88708427) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44354210 + 44354211.

It is an arithmetic number, because the mean of its divisors is an integer number (44354211).

Almost surely, 2^88708421 is an apocalyptic number.

It is an amenable number.

88708421 is a deficient number, since it is larger than the sum of its proper divisors (1).

88708421 is an equidigital number, since it uses as much as digits as its factorization.

88708421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 88708421 is about 9418.5147979923. The cubic root of 88708421 is about 445.9864008804.

The spelling of 88708421 in words is "eighty-eight million, seven hundred eight thousand, four hundred twenty-one".