76550945 has 8 divisors (see below), whose sum is σ = 92808744. Its totient is φ = 60609024.

The previous prime is 76550933. The next prime is 76550953. The reversal of 76550945 is 54905567.

It can be written as a sum of positive squares in 4 ways, for example, as 21613201 + 54937744 = 4649^2 + 7412^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 76550945 - 2¹² = 76546849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78434 + ... + 79403.

It is an arithmetic number, because the mean of its divisors is an integer number (11601093).

Almost surely, 2^76550945 is an apocalyptic number.

It is an amenable number.

76550945 is a deficient number, since it is larger than the sum of its proper divisors (16257799).

76550945 is a wasteful number, since it uses less digits than its factorization.

76550945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157939.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 76550945 is about 8749.3396893708. The cubic root of 76550945 is about 424.6034501801.

The spelling of 76550945 in words is "seventy-six million, five hundred fifty thousand, nine hundred forty-five".