671077613 has 2 divisors, whose sum is σ = 671077614. Its totient is φ = 671077612.

The previous prime is 671077607. The next prime is 671077619. The reversal of 671077613 is 316770176.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (671077607) and next prime (671077619).

It can be written as a sum of positive squares in only one way, i.e., 505260484 + 165817129 = 22478^2 + 12877^2 .

It is a cyclic number.

It is not a de Polignac number, because 671077613 - 2¹⁶ = 671012077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671077619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335538806 + 335538807.

It is an arithmetic number, because the mean of its divisors is an integer number (335538807).

Almost surely, 2^671077613 is an apocalyptic number.

It is an amenable number.

671077613 is a deficient number, since it is larger than the sum of its proper divisors (1).

671077613 is an equidigital number, since it uses as much as digits as its factorization.

671077613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 671077613 is about 25905.1657589756. The cubic root of 671077613 is about 875.5028893676.

The spelling of 671077613 in words is "six hundred seventy-one million, seventy-seven thousand, six hundred thirteen".