772306345 has 8 divisors (see below), whose sum is σ = 981283464. Its totient is φ = 581501184.

The previous prime is 772306343. The next prime is 772306361. The reversal of 772306345 is 543603277.

It can be written as a sum of positive squares in 4 ways, for example, as 349428249 + 422878096 = 18693^2 + 20564^2 .

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

It is not a de Polignac number, because 772306345 - 2¹ = 772306343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772306343) 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, 4542894 + ... + 4543063.

It is an arithmetic number, because the mean of its divisors is an integer number (122660433).

Almost surely, 2^772306345 is an apocalyptic number.

It is an amenable number.

772306345 is a deficient number, since it is larger than the sum of its proper divisors (208977119).

772306345 is a wasteful number, since it uses less digits than its factorization.

772306345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085979.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 772306345 is about 27790.4002310150. The cubic root of 772306345 is about 917.4798486913.

The spelling of 772306345 in words is "seven hundred seventy-two million, three hundred six thousand, three hundred forty-five".