369494789 has 4 divisors (see below), whose sum is σ = 369860556. Its totient is φ = 369129024.

The previous prime is 369494759. The next prime is 369494809. The reversal of 369494789 is 987494963.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71656225 + 297838564 = 8465^2 + 17258^2 .

It is a cyclic number.

It is not a de Polignac number, because 369494789 - 2⁸ = 369494533 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 (369494759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181364 + ... + 183389.

It is an arithmetic number, because the mean of its divisors is an integer number (92465139).

Almost surely, 2^369494789 is an apocalyptic number.

It is an amenable number.

369494789 is a deficient number, since it is larger than the sum of its proper divisors (365767).

369494789 is a wasteful number, since it uses less digits than its factorization.

369494789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365766.

The product of its digits is 11757312, while the sum is 59.

The square root of 369494789 is about 19222.2472411526. The cubic root of 369494789 is about 717.5785352731.

The spelling of 369494789 in words is "three hundred sixty-nine million, four hundred ninety-four thousand, seven hundred eighty-nine".