770346644 has 6 divisors (see below), whose sum is σ = 1348106634. Its totient is φ = 385173320.

The previous prime is 770346641. The next prime is 770346649. The reversal of 770346644 is 446643077.

It can be written as a sum of positive squares in only one way, i.e., 729540100 + 40806544 = 27010^2 + 6388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770346641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96293327 + ... + 96293334.

It is an arithmetic number, because the mean of its divisors is an integer number (224684439).

Almost surely, 2^770346644 is an apocalyptic number.

It is an amenable number.

770346644 is a deficient number, since it is larger than the sum of its proper divisors (577759990).

770346644 is a wasteful number, since it uses less digits than its factorization.

770346644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192586665 (or 192586663 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The square root of 770346644 is about 27755.1192395205. The cubic root of 770346644 is about 916.7031667817.

The spelling of 770346644 in words is "seven hundred seventy million, three hundred forty-six thousand, six hundred forty-four".