77214286 has 8 divisors (see below), whose sum is σ = 116231544. Its totient is φ = 38470440.

The previous prime is 77214281. The next prime is 77214307. The reversal of 77214286 is 68241277.

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 (77214281) 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, 67645 + ... + 68776.

It is an arithmetic number, because the mean of its divisors is an integer number (14528943).

Almost surely, 2^77214286 is an apocalyptic number.

77214286 is a deficient number, since it is larger than the sum of its proper divisors (39017258).

77214286 is a wasteful number, since it uses less digits than its factorization.

77214286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136706.

The product of its digits is 37632, while the sum is 37.

The square root of 77214286 is about 8787.1659822721. The cubic root of 77214286 is about 425.8263709385.

The spelling of 77214286 in words is "seventy-seven million, two hundred fourteen thousand, two hundred eighty-six".