77893630 has 8 divisors (see below), whose sum is σ = 140208552. Its totient is φ = 31157448.

The previous prime is 77893579. The next prime is 77893631. The reversal of 77893630 is 3639877.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77893631) 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, 3894672 + ... + 3894691.

It is an arithmetic number, because the mean of its divisors is an integer number (17526069).

Almost surely, 2^77893630 is an apocalyptic number.

77893630 is a deficient number, since it is larger than the sum of its proper divisors (62314922).

77893630 is a wasteful number, since it uses less digits than its factorization.

77893630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789370.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 77893630 is about 8825.7367964380. The cubic root of 77893630 is about 427.0715564364.

The spelling of 77893630 in words is "seventy-seven million, eight hundred ninety-three thousand, six hundred thirty".