74698345 has 16 divisors (see below), whose sum is σ = 94012560. Its totient is φ = 56899584.

The previous prime is 74698331. The next prime is 74698361. The reversal of 74698345 is 54389647.

It can be written as a sum of positive squares in 8 ways, for example, as 9072144 + 65626201 = 3012^2 + 8101^2 .

It is a 4-Lehmer number, since φ(74698345) divides (74698345-1)⁴.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74698345 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74698295 and 74698304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7057 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (5875785).

It is a Poulet number, since it divides 2^74698344-1.

Almost surely, 2^74698345 is an apocalyptic number.

74698345 is the 7057-th pentagonal number.

It is an amenable number.

74698345 is a deficient number, since it is larger than the sum of its proper divisors (19314215).

74698345 is a wasteful number, since it uses less digits than its factorization.

74698345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164.

The product of its digits is 725760, while the sum is 46.

The square root of 74698345 is about 8642.8204308547. The cubic root of 74698345 is about 421.1501825385.

The spelling of 74698345 in words is "seventy-four million, six hundred ninety-eight thousand, three hundred forty-five".