77725030 has 24 divisors (see below), whose sum is σ = 142646112. Its totient is φ = 30492384.

The previous prime is 77725013. The next prime is 77725093. The reversal of 77725030 is 3052777.

It is a junction number, because it is equal to n+sod(n) for n = 77724983 and 77725001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26707 + ... + 29473.

It is an arithmetic number, because the mean of its divisors is an integer number (5943588).

Almost surely, 2^77725030 is an apocalyptic number.

77725030 is a deficient number, since it is larger than the sum of its proper divisors (64921082).

77725030 is a wasteful number, since it uses less digits than its factorization.

77725030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 77725030 is about 8816.1800117738. The cubic root of 77725030 is about 426.7632031183.

The spelling of 77725030 in words is "seventy-seven million, seven hundred twenty-five thousand, thirty".