74297087 has 8 divisors (see below), whose sum is σ = 78616560. Its totient is φ = 70018560.

The previous prime is 74297081. The next prime is 74297117. The reversal of 74297087 is 78079247.

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 74297087 - 2¹² = 74292991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74297081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6464 + ... + 13797.

It is an arithmetic number, because the mean of its divisors is an integer number (9827070).

Almost surely, 2^74297087 is an apocalyptic number.

74297087 is a deficient number, since it is larger than the sum of its proper divisors (4319473).

74297087 is a wasteful number, since it uses less digits than its factorization.

74297087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20473.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 74297087 is about 8619.5758016274. The cubic root of 74297087 is about 420.3947290563.

The spelling of 74297087 in words is "seventy-four million, two hundred ninety-seven thousand, eighty-seven".