74106869 has 8 divisors (see below), whose sum is σ = 75164760. Its totient is φ = 73056256.

The previous prime is 74106863. The next prime is 74106871. The reversal of 74106869 is 96860147.

It can be written as a sum of positive squares in 4 ways, for example, as 7896100 + 66210769 = 2810^2 + 8137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74106869 - 2⁴ = 74106853 is a prime.

It is a super-2 number, since 2×74106869² = 10983656065966322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74106863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20597 + ... + 23925.

It is an arithmetic number, because the mean of its divisors is an integer number (9395595).

Almost surely, 2^74106869 is an apocalyptic number.

It is an amenable number.

74106869 is a deficient number, since it is larger than the sum of its proper divisors (1057891).

74106869 is a wasteful number, since it uses less digits than its factorization.

74106869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 74106869 is about 8608.5346604402. The cubic root of 74106869 is about 420.0356526802.

The spelling of 74106869 in words is "seventy-four million, one hundred six thousand, eight hundred sixty-nine".