73679642 has 4 divisors (see below), whose sum is σ = 110519466. Its totient is φ = 36839820.

The previous prime is 73679623. The next prime is 73679647. The reversal of 73679642 is 24697637.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70543201 + 3136441 = 8399^2 + 1771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73679593 and 73679602.

It is not an unprimeable number, because it can be changed into a prime (73679647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18419909 + ... + 18419912.

Almost surely, 2^73679642 is an apocalyptic number.

73679642 is a deficient number, since it is larger than the sum of its proper divisors (36839824).

73679642 is a wasteful number, since it uses less digits than its factorization.

73679642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36839823.

The product of its digits is 381024, while the sum is 44.

The square root of 73679642 is about 8583.6846400599. The cubic root of 73679642 is about 419.2269263644.

The spelling of 73679642 in words is "seventy-three million, six hundred seventy-nine thousand, six hundred forty-two".