1979499435 has 8 divisors (see below), whose sum is σ = 3167199120. Its totient is φ = 1055733024.

The previous prime is 1979499433. The next prime is 1979499443. The reversal of 1979499435 is 5349949791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1979499435 - 2¹ = 1979499433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1979499433) 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, 65983300 + ... + 65983329.

It is an arithmetic number, because the mean of its divisors is an integer number (395899890).

Almost surely, 2^1979499435 is an apocalyptic number.

1979499435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1979499435 is a deficient number, since it is larger than the sum of its proper divisors (1187699685).

1979499435 is a wasteful number, since it uses less digits than its factorization.

1979499435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131966637.

The product of its digits is 11022480, while the sum is 60.

The square root of 1979499435 is about 44491.5658861317. The cubic root of 1979499435 is about 1255.6014080228.

The spelling of 1979499435 in words is "one billion, nine hundred seventy-nine million, four hundred ninety-nine thousand, four hundred thirty-five".