76147493 has 4 divisors (see below), whose sum is σ = 76658700. Its totient is φ = 75636288.

The previous prime is 76147451. The next prime is 76147499. The reversal of 76147493 is 39474167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39474167 = 79 ⋅499673.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 60481729 = 3958^2 + 7777^2 .

It is a cyclic number.

It is not a de Polignac number, because 76147493 - 2¹⁴ = 76131109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76147493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76147499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255380 + ... + 255677.

It is an arithmetic number, because the mean of its divisors is an integer number (19164675).

Almost surely, 2^76147493 is an apocalyptic number.

It is an amenable number.

76147493 is a deficient number, since it is larger than the sum of its proper divisors (511207).

76147493 is a wasteful number, since it uses less digits than its factorization.

76147493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511206.

The product of its digits is 127008, while the sum is 41.

The square root of 76147493 is about 8726.2530905309. The cubic root of 76147493 is about 423.8561964124.

The spelling of 76147493 in words is "seventy-six million, one hundred forty-seven thousand, four hundred ninety-three".