772306 has 4 divisors (see below), whose sum is σ = 1158462. Its totient is φ = 386152.

The previous prime is 772297. The next prime is 772313. The reversal of 772306 is 603277.

772306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603277 = 353 ⋅1709.

It can be written as a sum of positive squares in only one way, i.e., 707281 + 65025 = 841^2 + 255^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193075 + ... + 193078.

2⁷⁷²³⁰⁶ is an apocalyptic number.

772306 is a deficient number, since it is larger than the sum of its proper divisors (386156).

772306 is a wasteful number, since it uses less digits than its factorization.

772306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386155.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 772306 is about 878.8094218885. The cubic root of 772306 is about 91.7479712074.

The spelling of 772306 in words is "seven hundred seventy-two thousand, three hundred six".