74030991 has 8 divisors (see below), whose sum is σ = 99254064. Its totient is φ = 49080960.

The previous prime is 74030989. The next prime is 74031019. The reversal of 74030991 is 19903047.

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

It is not a de Polignac number, because 74030991 - 2¹ = 74030989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74030911) 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, 67626 + ... + 68711.

It is an arithmetic number, because the mean of its divisors is an integer number (12406758).

Almost surely, 2^74030991 is an apocalyptic number.

74030991 is a deficient number, since it is larger than the sum of its proper divisors (25223073).

74030991 is a wasteful number, since it uses less digits than its factorization.

74030991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136521.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 74030991 is about 8604.1263937718. The cubic root of 74030991 is about 419.8922455997.

The spelling of 74030991 in words is "seventy-four million, thirty thousand, nine hundred ninety-one".