76345505 has 4 divisors (see below), whose sum is σ = 91614612. Its totient is φ = 61076400.

The previous prime is 76345501. The next prime is 76345513. The reversal of 76345505 is 50554367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50554367 = 2719 ⋅18593.

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 58308496 = 4247^2 + 7636^2 .

It is not a de Polignac number, because 76345505 - 2² = 76345501 is a prime.

It is a super-2 number, since 2×76345505² = 11657272267410050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76345501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7634546 + ... + 7634555.

It is an arithmetic number, because the mean of its divisors is an integer number (22903653).

Almost surely, 2^76345505 is an apocalyptic number.

It is an amenable number.

76345505 is a deficient number, since it is larger than the sum of its proper divisors (15269107).

76345505 is a wasteful number, since it uses less digits than its factorization.

76345505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15269106.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 76345505 is about 8737.5914873608. The cubic root of 76345505 is about 424.2232733669.

The spelling of 76345505 in words is "seventy-six million, three hundred forty-five thousand, five hundred five".