77012273 has 16 divisors (see below), whose sum is σ = 85214976. Its totient is φ = 69154560.

The previous prime is 77012249. The next prime is 77012291. The reversal of 77012273 is 37221077.

It is a cyclic number.

It is not a de Polignac number, because 77012273 - 2⁸ = 77012017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146990 + ... + 147512.

It is an arithmetic number, because the mean of its divisors is an integer number (5325936).

Almost surely, 2^77012273 is an apocalyptic number.

It is an amenable number.

77012273 is a deficient number, since it is larger than the sum of its proper divisors (8202703).

77012273 is a wasteful number, since it uses less digits than its factorization.

77012273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 77012273 is about 8775.6636786057. The cubic root of 77012273 is about 425.4546884622.

The spelling of 77012273 in words is "seventy-seven million, twelve thousand, two hundred seventy-three".