78350830 has 32 divisors (see below), whose sum is σ = 145489536. Its totient is φ = 30357504.

The previous prime is 78350803. The next prime is 78350861. The reversal of 78350830 is 3805387.

It is a super-2 number, since 2×78350830² = 12277705123377800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135502 + ... + 136078.

It is an arithmetic number, because the mean of its divisors is an integer number (4546548).

Almost surely, 2^78350830 is an apocalyptic number.

78350830 is a deficient number, since it is larger than the sum of its proper divisors (67138706).

78350830 is a wasteful number, since it uses less digits than its factorization.

78350830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 78350830 is about 8851.6004202630. The cubic root of 78350830 is about 427.9054985407.

The spelling of 78350830 in words is "seventy-eight million, three hundred fifty thousand, eight hundred thirty".