77053109 has 8 divisors (see below), whose sum is σ = 88133760. Its totient is φ = 65990736.

The previous prime is 77053103. The next prime is 77053147. The reversal of 77053109 is 90135077.

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

It is a de Polignac number, because none of the positive numbers 2^k-77053109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77053103) 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, 6152 + ... + 13854.

It is an arithmetic number, because the mean of its divisors is an integer number (11016720).

Almost surely, 2^77053109 is an apocalyptic number.

It is an amenable number.

77053109 is a deficient number, since it is larger than the sum of its proper divisors (11080651).

77053109 is a wasteful number, since it uses less digits than its factorization.

77053109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 77053109 is about 8777.9900318923. The cubic root of 77053109 is about 425.5298747368.

The spelling of 77053109 in words is "seventy-seven million, fifty-three thousand, one hundred nine".