76673642 has 4 divisors (see below), whose sum is σ = 115010466. Its totient is φ = 38336820.

The previous prime is 76673609. The next prime is 76673647. The reversal of 76673642 is 24637667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24637667 = 43 ⋅572969.

It can be written as a sum of positive squares in only one way, i.e., 41615401 + 35058241 = 6451^2 + 5921^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76673642.

It is not an unprimeable number, because it can be changed into a prime (76673647) 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 as a sum of consecutive naturals, namely, 19168409 + ... + 19168412.

Almost surely, 2^76673642 is an apocalyptic number.

76673642 is a deficient number, since it is larger than the sum of its proper divisors (38336824).

76673642 is a wasteful number, since it uses less digits than its factorization.

76673642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38336823.

The product of its digits is 254016, while the sum is 41.

The square root of 76673642 is about 8756.3486682521. The cubic root of 76673642 is about 424.8301826741.

The spelling of 76673642 in words is "seventy-six million, six hundred seventy-three thousand, six hundred forty-two".