77903382 has 32 divisors (see below), whose sum is σ = 164707200. Its totient is φ = 24496128.

The previous prime is 77903347. The next prime is 77903387. The reversal of 77903382 is 28330977.

It is a self number, because there is not a number n which added to its sum of digits gives 77903382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77903387) 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, 27969 + ... + 30627.

It is an arithmetic number, because the mean of its divisors is an integer number (5147100).

Almost surely, 2^77903382 is an apocalyptic number.

77903382 is an abundant number, since it is smaller than the sum of its proper divisors (86803818).

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

77903382 is a wasteful number, since it uses less digits than its factorization.

77903382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 77903382 is about 8826.2892542676. The cubic root of 77903382 is about 427.0893782961.

The spelling of 77903382 in words is "seventy-seven million, nine hundred three thousand, three hundred eighty-two".