76461745 has 4 divisors (see below), whose sum is σ = 91754100. Its totient is φ = 61169392.

The previous prime is 76461743. The next prime is 76461773. The reversal of 76461745 is 54716467.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54716467 = 13 ⋅4208959.

It can be written as a sum of positive squares in 2 ways, for example, as 54997056 + 21464689 = 7416^2 + 4633^2 .

It is a cyclic number.

It is not a de Polignac number, because 76461745 - 2¹ = 76461743 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 76461698 and 76461707.

It is not an unprimeable number, because it can be changed into a prime (76461743) 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, 7646170 + ... + 7646179.

It is an arithmetic number, because the mean of its divisors is an integer number (22938525).

Almost surely, 2^76461745 is an apocalyptic number.

It is an amenable number.

76461745 is a deficient number, since it is larger than the sum of its proper divisors (15292355).

76461745 is a wasteful number, since it uses less digits than its factorization.

76461745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292354.

The product of its digits is 141120, while the sum is 40.

The square root of 76461745 is about 8744.2406760107. The cubic root of 76461745 is about 424.4384648524.

The spelling of 76461745 in words is "seventy-six million, four hundred sixty-one thousand, seven hundred forty-five".