679301906 has 4 divisors (see below), whose sum is σ = 1018952862. Its totient is φ = 339650952.

The previous prime is 679301891. The next prime is 679301921. The reversal of 679301906 is 609103976.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (679301891) and next prime (679301921).

It can be written as a sum of positive squares in only one way, i.e., 470239225 + 209062681 = 21685^2 + 14459^2 .

It is a super-2 number, since 2×679301906² = 922902158990465672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169825475 + ... + 169825478.

Almost surely, 2^679301906 is an apocalyptic number.

679301906 is a deficient number, since it is larger than the sum of its proper divisors (339650956).

679301906 is a wasteful number, since it uses less digits than its factorization.

679301906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339650955.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 679301906 is about 26063.4208422456. The cubic root of 679301906 is about 879.0649097875.

The spelling of 679301906 in words is "six hundred seventy-nine million, three hundred one thousand, nine hundred six".