670400741 has 2 divisors, whose sum is σ = 670400742. Its totient is φ = 670400740.

The previous prime is 670400719. The next prime is 670400779. The reversal of 670400741 is 147004076.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449016100 + 221384641 = 21190^2 + 14879^2 .

It is a cyclic number.

It is not a de Polignac number, because 670400741 - 2⁶ = 670400677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670406741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335200370 + 335200371.

It is an arithmetic number, because the mean of its divisors is an integer number (335200371).

Almost surely, 2^670400741 is an apocalyptic number.

It is an amenable number.

670400741 is a deficient number, since it is larger than the sum of its proper divisors (1).

670400741 is an equidigital number, since it uses as much as digits as its factorization.

670400741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 670400741 is about 25892.0980416806. The cubic root of 670400741 is about 875.2084362214.

The spelling of 670400741 in words is "six hundred seventy million, four hundred thousand, seven hundred forty-one".