694128413 has 8 divisors (see below), whose sum is σ = 757421760. Its totient is φ = 630866880.

The previous prime is 694128397. The next prime is 694128437. The reversal of 694128413 is 314821496.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 694128413 - 2⁴ = 694128397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694128013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80453 + ... + 88661.

It is an arithmetic number, because the mean of its divisors is an integer number (94677720).

Almost surely, 2^694128413 is an apocalyptic number.

It is an amenable number.

694128413 is a deficient number, since it is larger than the sum of its proper divisors (63293347).

694128413 is a wasteful number, since it uses less digits than its factorization.

694128413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15907.

The product of its digits is 41472, while the sum is 38.

The square root of 694128413 is about 26346.3168773170. The cubic root of 694128413 is about 885.4144538603.

The spelling of 694128413 in words is "six hundred ninety-four million, one hundred twenty-eight thousand, four hundred thirteen".