764378214 has 12 divisors (see below), whose sum is σ = 1528891884. Its totient is φ = 254770164.

The previous prime is 764378213. The next prime is 764378221. The reversal of 764378214 is 412873467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764378213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62079 + ... + 73365.

It is an arithmetic number, because the mean of its divisors is an integer number (127407657).

Almost surely, 2^764378214 is an apocalyptic number.

764378214 is an abundant number, since it is smaller than the sum of its proper divisors (764513670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764378214 is an frugal number, since it uses more digits than its factorization.

764378214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22579 (or 11292 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 764378214 is about 27647.3907267937. The cubic root of 764378214 is about 914.3295730937.

The spelling of 764378214 in words is "seven hundred sixty-four million, three hundred seventy-eight thousand, two hundred fourteen".