674399101 has 2 divisors, whose sum is σ = 674399102. Its totient is φ = 674399100.

The previous prime is 674399093. The next prime is 674399113. The reversal of 674399101 is 101993476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495107001 + 179292100 = 22251^2 + 13390^2 .

It is a cyclic number.

It is not a de Polignac number, because 674399101 - 2³ = 674399093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674399501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337199550 + 337199551.

It is an arithmetic number, because the mean of its divisors is an integer number (337199551).

Almost surely, 2^674399101 is an apocalyptic number.

It is an amenable number.

674399101 is a deficient number, since it is larger than the sum of its proper divisors (1).

674399101 is an equidigital number, since it uses as much as digits as its factorization.

674399101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 674399101 is about 25969.1952320437. The cubic root of 674399101 is about 876.9449420598.

Subtracting from 674399101 its reverse (101993476), we obtain a square (572405625 = 23925²).

The spelling of 674399101 in words is "six hundred seventy-four million, three hundred ninety-nine thousand, one hundred one".