499979770 has 8 divisors (see below), whose sum is σ = 899963604. Its totient is φ = 199991904.

The previous prime is 499979761. The next prime is 499979783. The reversal of 499979770 is 77979994.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 499388409 + 591361 = 22347^2 + 769^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 499979699 and 499979708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24998979 + ... + 24998998.

Almost surely, 2^499979770 is an apocalyptic number.

499979770 is a deficient number, since it is larger than the sum of its proper divisors (399983834).

499979770 is a wasteful number, since it uses less digits than its factorization.

499979770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49997984.

The product of its (nonzero) digits is 9001692, while the sum is 61.

The square root of 499979770 is about 22360.2274138704. The cubic root of 499979770 is about 793.6898214653.

The spelling of 499979770 in words is "four hundred ninety-nine million, nine hundred seventy-nine thousand, seven hundred seventy".