77020630 has 8 divisors (see below), whose sum is σ = 138637152. Its totient is φ = 30808248.

The previous prime is 77020627. The next prime is 77020631. The reversal of 77020630 is 3602077.

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

It is a junction number, because it is equal to n+sod(n) for n = 77020595 and 77020604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77020631) 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, 3851022 + ... + 3851041.

It is an arithmetic number, because the mean of its divisors is an integer number (17329644).

Almost surely, 2^77020630 is an apocalyptic number.

77020630 is a deficient number, since it is larger than the sum of its proper divisors (61616522).

77020630 is a wasteful number, since it uses less digits than its factorization.

77020630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7702070.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 77020630 is about 8776.1398120130. The cubic root of 77020630 is about 425.4700773351.

The spelling of 77020630 in words is "seventy-seven million, twenty thousand, six hundred thirty".