620706767 has 2 divisors, whose sum is σ = 620706768. Its totient is φ = 620706766.

The previous prime is 620706761. The next prime is 620706803. The reversal of 620706767 is 767607026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620706767 - 2⁸ = 620706511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620706761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310353383 + 310353384.

It is an arithmetic number, because the mean of its divisors is an integer number (310353384).

Almost surely, 2^620706767 is an apocalyptic number.

620706767 is a deficient number, since it is larger than the sum of its proper divisors (1).

620706767 is an equidigital number, since it uses as much as digits as its factorization.

620706767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 620706767 is about 24913.9873765722. The cubic root of 620706767 is about 853.0257868802.

The spelling of 620706767 in words is "six hundred twenty million, seven hundred six thousand, seven hundred sixty-seven".