369612989 has 4 divisors (see below), whose sum is σ = 373067424. Its totient is φ = 366158556.

The previous prime is 369612979. The next prime is 369613003. The reversal of 369612989 is 989216963.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-369612989 is a prime.

It is a super-2 number, since 2×369612989² = 273227523275028242, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 369612989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369612979) 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, 1727057 + ... + 1727270.

It is an arithmetic number, because the mean of its divisors is an integer number (93266856).

Almost surely, 2^369612989 is an apocalyptic number.

It is an amenable number.

369612989 is a deficient number, since it is larger than the sum of its proper divisors (3454435).

369612989 is a wasteful number, since it uses less digits than its factorization.

369612989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454434.

The product of its digits is 1259712, while the sum is 53.

The square root of 369612989 is about 19225.3215577789. The cubic root of 369612989 is about 717.6550440113.

The spelling of 369612989 in words is "three hundred sixty-nine million, six hundred twelve thousand, nine hundred eighty-nine".