1479197979 has 24 divisors (see below), whose sum is σ = 2498642432. Its totient is φ = 825597360.

The previous prime is 1479197977. The next prime is 1479198023. The reversal of 1479197979 is 9797919741.

1479197979 is a `hidden beast` number, since 1 + 479 + 1 + 97 + 9 + 79 = 666.

It is not a de Polignac number, because 1479197979 - 2¹ = 1479197977 is a prime.

It is a super-2 number, since 2×1479197979² = 4376053322155368882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1479197971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270307 + ... + 275724.

Almost surely, 2^1479197979 is an apocalyptic number.

1479197979 is a deficient number, since it is larger than the sum of its proper divisors (1019444453).

1479197979 is a wasteful number, since it uses less digits than its factorization.

1479197979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546087 (or 546084 counting only the distinct ones).

The product of its digits is 9001692, while the sum is 63.

The square root of 1479197979 is about 38460.3429391887. The cubic root of 1479197979 is about 1139.3979531147.

The spelling of 1479197979 in words is "one billion, four hundred seventy-nine million, one hundred ninety-seven thousand, nine hundred seventy-nine".