78992230 has 32 divisors (see below), whose sum is σ = 147666240. Its totient is φ = 30387840.

The previous prime is 78992227. The next prime is 78992231. The reversal of 78992230 is 3229987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78992231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121767 + ... + 122413.

It is an arithmetic number, because the mean of its divisors is an integer number (4614570).

Almost surely, 2^78992230 is an apocalyptic number.

78992230 is a deficient number, since it is larger than the sum of its proper divisors (68674010).

78992230 is a wasteful number, since it uses less digits than its factorization.

78992230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 78992230 is about 8887.7573099180. The cubic root of 78992230 is about 429.0699748025.

The spelling of 78992230 in words is "seventy-eight million, nine hundred ninety-two thousand, two hundred thirty".