74881469 has 8 divisors (see below), whose sum is σ = 80774232. Its totient is φ = 69007680.

The previous prime is 74881463. The next prime is 74881483. The reversal of 74881469 is 96418847.

It can be written as a sum of positive squares in 4 ways, for example, as 1144900 + 73736569 = 1070^2 + 8587^2 .

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 74881469 - 2¹⁶ = 74815933 is a prime.

It is a super-2 number, since 2×74881469² = 11214468799195922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74881463) 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, 4079 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (10096779).

Almost surely, 2^74881469 is an apocalyptic number.

It is an amenable number.

74881469 is a deficient number, since it is larger than the sum of its proper divisors (5892763).

74881469 is a wasteful number, since it uses less digits than its factorization.

74881469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487.

The product of its digits is 387072, while the sum is 47.

The square root of 74881469 is about 8653.4079413836. The cubic root of 74881469 is about 421.4940534737.

The spelling of 74881469 in words is "seventy-four million, eight hundred eighty-one thousand, four hundred sixty-nine".