77214397 has 8 divisors (see below), whose sum is σ = 85836800. Its totient is φ = 68975280.

The previous prime is 77214359. The next prime is 77214407. The reversal of 77214397 is 79341277.

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

It is a cyclic number.

It is not a de Polignac number, because 77214397 - 2¹¹ = 77212349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77214307) 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, 95397 + ... + 96202.

It is an arithmetic number, because the mean of its divisors is an integer number (10729600).

Almost surely, 2^77214397 is an apocalyptic number.

It is an amenable number.

77214397 is a deficient number, since it is larger than the sum of its proper divisors (8622403).

77214397 is a wasteful number, since it uses less digits than its factorization.

77214397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191643.

The product of its digits is 74088, while the sum is 40.

The square root of 77214397 is about 8787.1722982994. The cubic root of 77214397 is about 425.8265749884.

The spelling of 77214397 in words is "seventy-seven million, two hundred fourteen thousand, three hundred ninety-seven".