69642401 has 2 divisors, whose sum is σ = 69642402. Its totient is φ = 69642400.

The previous prime is 69642379. The next prime is 69642403. The reversal of 69642401 is 10424696.

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., 52635025 + 17007376 = 7255^2 + 4124^2 .

It is a cyclic number.

It is not a de Polignac number, because 69642401 - 2¹⁴ = 69626017 is a prime.

Together with 69642403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69642403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34821200 + 34821201.

It is an arithmetic number, because the mean of its divisors is an integer number (34821201).

Almost surely, 2^69642401 is an apocalyptic number.

It is an amenable number.

69642401 is a deficient number, since it is larger than the sum of its proper divisors (1).

69642401 is an equidigital number, since it uses as much as digits as its factorization.

69642401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 69642401 is about 8345.2022743610. The cubic root of 69642401 is about 411.4255374774.

The spelling of 69642401 in words is "sixty-nine million, six hundred forty-two thousand, four hundred one".