194379479 has 16 divisors (see below), whose sum is σ = 240691968. Its totient is φ = 153159552.

The previous prime is 194379467. The next prime is 194379499. The reversal of 194379479 is 974973491.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-194379479 is a prime.

It is a super-2 number, since 2×194379479² = 75566763712622882, which contains 22 as substring.

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 194379479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194379499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13877 + ... + 24110.

It is an arithmetic number, because the mean of its divisors is an integer number (15043248).

Almost surely, 2^194379479 is an apocalyptic number.

194379479 is a deficient number, since it is larger than the sum of its proper divisors (46312489).

194379479 is a wasteful number, since it uses less digits than its factorization.

194379479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38054.

The product of its digits is 1714608, while the sum is 53.

The square root of 194379479 is about 13942.0041242283. The cubic root of 194379479 is about 579.2732464991.

The spelling of 194379479 in words is "one hundred ninety-four million, three hundred seventy-nine thousand, four hundred seventy-nine".