74799747 has 32 divisors (see below), whose sum is σ = 123720960. Its totient is φ = 44271360.

The previous prime is 74799743. The next prime is 74799761.

74799747 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74799747 - 2² = 74799743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74799693 and 74799702.

It is not an unprimeable number, because it can be changed into a prime (74799743) 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 31 ways as a sum of consecutive naturals, for example, 9843 + ... + 15699.

It is an arithmetic number, because the mean of its divisors is an integer number (3866280).

Almost surely, 2^74799747 is an apocalyptic number.

74799747 is a deficient number, since it is larger than the sum of its proper divisors (48921213).

74799747 is a wasteful number, since it uses less digits than its factorization.

74799747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5914 counting only the distinct ones).

The product of its digits is 3111696, while the sum is 54.

The square root of 74799747 is about 8648.6846976867. The cubic root of 74799747 is about 421.3406649440.

The spelling of 74799747 in words is "seventy-four million, seven hundred ninety-nine thousand, seven hundred forty-seven".