77947050 has 24 divisors (see below), whose sum is σ = 193309056. Its totient is φ = 20785840.

The previous prime is 77947031. The next prime is 77947073. The reversal of 77947050 is 5074977.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259674 + ... + 259973.

It is an arithmetic number, because the mean of its divisors is an integer number (8054544).

Almost surely, 2^77947050 is an apocalyptic number.

77947050 is an abundant number, since it is smaller than the sum of its proper divisors (115362006).

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

77947050 is a wasteful number, since it uses less digits than its factorization.

77947050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519662 (or 519657 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 77947050 is about 8828.7626539623. The cubic root of 77947050 is about 427.1691636869.

The spelling of 77947050 in words is "seventy-seven million, nine hundred forty-seven thousand, fifty".