707342639 has 2 divisors, whose sum is σ = 707342640. Its totient is φ = 707342638.

The previous prime is 707342633. The next prime is 707342689. The reversal of 707342639 is 936243707.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 707342639 - 2²⁰ = 706294063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 707342596 and 707342605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (707342633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353671319 + 353671320.

It is an arithmetic number, because the mean of its divisors is an integer number (353671320).

Almost surely, 2^707342639 is an apocalyptic number.

707342639 is a deficient number, since it is larger than the sum of its proper divisors (1).

707342639 is an equidigital number, since it uses as much as digits as its factorization.

707342639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 707342639 is about 26595.9139530869. The cubic root of 707342639 is about 890.9977612038.

The spelling of 707342639 in words is "seven hundred seven million, three hundred forty-two thousand, six hundred thirty-nine".