77930671 has 8 divisors (see below), whose sum is σ = 95914784. Its totient is φ = 61659360.

The previous prime is 77930641. The next prime is 77930687. The reversal of 77930671 is 17603977.

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

It is not a de Polignac number, because 77930671 - 2¹³ = 77922479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77930641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428100 + ... + 428281.

It is an arithmetic number, because the mean of its divisors is an integer number (11989348).

Almost surely, 2^77930671 is an apocalyptic number.

77930671 is a deficient number, since it is larger than the sum of its proper divisors (17984113).

77930671 is a wasteful number, since it uses less digits than its factorization.

77930671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856401.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 77930671 is about 8827.8350120514. The cubic root of 77930671 is about 427.1392412637.

The spelling of 77930671 in words is "seventy-seven million, nine hundred thirty thousand, six hundred seventy-one".