74287670 has 8 divisors (see below), whose sum is σ = 133717824. Its totient is φ = 29715064.

The previous prime is 74287643. The next prime is 74287679. The reversal of 74287670 is 7678247.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74287679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3714374 + ... + 3714393.

It is an arithmetic number, because the mean of its divisors is an integer number (16714728).

Almost surely, 2^74287670 is an apocalyptic number.

74287670 is a deficient number, since it is larger than the sum of its proper divisors (59430154).

74287670 is a wasteful number, since it uses less digits than its factorization.

74287670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428774.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 74287670 is about 8619.0295277369. The cubic root of 74287670 is about 420.3769669224.

The spelling of 74287670 in words is "seventy-four million, two hundred eighty-seven thousand, six hundred seventy".