76477109 has 4 divisors (see below), whose sum is σ = 80502240. Its totient is φ = 72451980.

The previous prime is 76477061. The next prime is 76477111. The reversal of 76477109 is 90177467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90177467 = 3907 ⋅23081.

It is a cyclic number.

It is not a de Polignac number, because 76477109 - 2⁸ = 76476853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76477189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012537 + ... + 2012574.

It is an arithmetic number, because the mean of its divisors is an integer number (20125560).

Almost surely, 2^76477109 is an apocalyptic number.

It is an amenable number.

76477109 is a deficient number, since it is larger than the sum of its proper divisors (4025131).

76477109 is a wasteful number, since it uses less digits than its factorization.

76477109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025130.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 76477109 is about 8745.1191529904. The cubic root of 76477109 is about 424.4668914241.

The spelling of 76477109 in words is "seventy-six million, four hundred seventy-seven thousand, one hundred nine".