1979499707 has 8 divisors (see below), whose sum is σ = 2001217152. Its totient is φ = 1957824000.

The previous prime is 1979499689. The next prime is 1979499713. The reversal of 1979499707 is 7079949791.

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 1979499707 - 2¹² = 1979495611 is a prime.

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 1979499707.

It is not an unprimeable number, because it can be changed into a prime (1979499727) 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, 90203 + ... + 109979.

It is an arithmetic number, because the mean of its divisors is an integer number (250152144).

Almost surely, 2^1979499707 is an apocalyptic number.

1979499707 is a deficient number, since it is larger than the sum of its proper divisors (21717445).

1979499707 is a wasteful number, since it uses less digits than its factorization.

1979499707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20869.

The product of its (nonzero) digits is 9001692, while the sum is 62.

The square root of 1979499707 is about 44491.5689428907. The cubic root of 1979499707 is about 1255.6014655329.

The spelling of 1979499707 in words is "one billion, nine hundred seventy-nine million, four hundred ninety-nine thousand, seven hundred seven".