642414307 has 2 divisors, whose sum is σ = 642414308. Its totient is φ = 642414306.

The previous prime is 642414299. The next prime is 642414323. The reversal of 642414307 is 703414246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 642414307 - 2³ = 642414299 is a prime.

It is a super-2 number, since 2×642414307² = 825392283676580498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (642414337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321207153 + 321207154.

It is an arithmetic number, because the mean of its divisors is an integer number (321207154).

Almost surely, 2^642414307 is an apocalyptic number.

642414307 is a deficient number, since it is larger than the sum of its proper divisors (1).

642414307 is an equidigital number, since it uses as much as digits as its factorization.

642414307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 642414307 is about 25345.8932965481. The cubic root of 642414307 is about 862.8561551448.

The spelling of 642414307 in words is "six hundred forty-two million, four hundred fourteen thousand, three hundred seven".