77990214 has 8 divisors (see below), whose sum is σ = 155980440. Its totient is φ = 25996736.

The previous prime is 77990201. The next prime is 77990219. The reversal of 77990214 is 41209977.

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

77990214 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77990219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6499179 + ... + 6499190.

It is an arithmetic number, because the mean of its divisors is an integer number (19497555).

Almost surely, 2^77990214 is an apocalyptic number.

77990214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77990214 is a wasteful number, since it uses less digits than its factorization.

77990214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998374.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 77990214 is about 8831.2068257968. The cubic root of 77990214 is about 427.2479989448.

The spelling of 77990214 in words is "seventy-seven million, nine hundred ninety thousand, two hundred fourteen".