77055213 has 8 divisors (see below), whose sum is σ = 102783808. Its totient is φ = 51348384.

The previous prime is 77055211. The next prime is 77055229. The reversal of 77055213 is 31255077.

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

It is not a de Polignac number, because 77055213 - 2¹ = 77055211 is a prime.

It is a super-3 number, since 3×77055213³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77055211) 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, 6681 + ... + 14097.

It is an arithmetic number, because the mean of its divisors is an integer number (12847976).

Almost surely, 2^77055213 is an apocalyptic number.

It is an amenable number.

77055213 is a deficient number, since it is larger than the sum of its proper divisors (25728595).

77055213 is a wasteful number, since it uses less digits than its factorization.

77055213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10883.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 77055213 is about 8778.1098762775. The cubic root of 77055213 is about 425.5337478520.

The spelling of 77055213 in words is "seventy-seven million, fifty-five thousand, two hundred thirteen".