74781069 has 8 divisors (see below), whose sum is σ = 108772512. Its totient is φ = 45321840.

The previous prime is 74781067. The next prime is 74781071. The reversal of 74781069 is 96018747.

It is an interprime number because it is at equal distance from previous prime (74781067) and next prime (74781071).

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

It is not a de Polignac number, because 74781069 - 2¹ = 74781067 is a prime.

It is a super-2 number, since 2×74781069² = 11184416561565522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74781069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74781061) 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, 1133014 + ... + 1133079.

It is an arithmetic number, because the mean of its divisors is an integer number (13596564).

Almost surely, 2^74781069 is an apocalyptic number.

It is an amenable number.

74781069 is a deficient number, since it is larger than the sum of its proper divisors (33991443).

74781069 is a wasteful number, since it uses less digits than its factorization.

74781069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266107.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 74781069 is about 8647.6048128947. The cubic root of 74781069 is about 421.3055914917.

The spelling of 74781069 in words is "seventy-four million, seven hundred eighty-one thousand, sixty-nine".