74678471 has 8 divisors (see below), whose sum is σ = 85401600. Its totient is φ = 63969048.

The previous prime is 74678453. The next prime is 74678477. The reversal of 74678471 is 17487647.

It is a happy number.

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 74678471 - 2¹⁴ = 74662087 is a prime.

It is a super-3 number, since 3×74678471³ (a number of 25 digits) contains 333 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 (74678477) 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, 14570 + ... + 19016.

It is an arithmetic number, because the mean of its divisors is an integer number (10675200).

Almost surely, 2^74678471 is an apocalyptic number.

74678471 is a deficient number, since it is larger than the sum of its proper divisors (10723129).

74678471 is a wasteful number, since it uses less digits than its factorization.

74678471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853.

The product of its digits is 263424, while the sum is 44.

The square root of 74678471 is about 8641.6706139496. The cubic root of 74678471 is about 421.1128292739.

The spelling of 74678471 in words is "seventy-four million, six hundred seventy-eight thousand, four hundred seventy-one".