77273146 has 12 divisors (see below), whose sum is σ = 121170042. Its totient is φ = 36956216.

The previous prime is 77273117. The next prime is 77273149. The reversal of 77273146 is 64137277.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 31236921 = 6785^2 + 5589^2 .

It is a super-2 number, since 2×77273146² = 11942278185474632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77273149) 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, 35461 + ... + 37576.

Almost surely, 2^77273146 is an apocalyptic number.

77273146 is a deficient number, since it is larger than the sum of its proper divisors (43896896).

77273146 is a wasteful number, since it uses less digits than its factorization.

77273146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73085 (or 73062 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 77273146 is about 8790.5145469421. The cubic root of 77273146 is about 425.9345451095.

The spelling of 77273146 in words is "seventy-seven million, two hundred seventy-three thousand, one hundred forty-six".