77103640 has 16 divisors (see below), whose sum is σ = 173483280. Its totient is φ = 30841440.

The previous prime is 77103617. The next prime is 77103673. The reversal of 77103640 is 4630177.

It is a junction number, because it is equal to n+sod(n) for n = 77103599 and 77103608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963756 + ... + 963835.

It is an arithmetic number, because the mean of its divisors is an integer number (10842705).

Almost surely, 2^77103640 is an apocalyptic number.

It is an amenable number.

77103640 is an abundant number, since it is smaller than the sum of its proper divisors (96379640).

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

77103640 is a wasteful number, since it uses less digits than its factorization.

77103640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927602 (or 1927598 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 77103640 is about 8780.8678386592. The cubic root of 77103640 is about 425.6228744513.

The spelling of 77103640 in words is "seventy-seven million, one hundred three thousand, six hundred forty".