74863491 has 8 divisors (see below), whose sum is σ = 100082880. Its totient is φ = 49776552.

The previous prime is 74863463. The next prime is 74863519. The reversal of 74863491 is 19436847.

It is an interprime number because it is at equal distance from previous prime (74863463) and next prime (74863519).

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

It is not a de Polignac number, because 74863491 - 2¹⁷ = 74732419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74863421) 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 7 ways as a sum of consecutive naturals, for example, 31785 + ... + 34058.

It is an arithmetic number, because the mean of its divisors is an integer number (12510360).

Almost surely, 2^74863491 is an apocalyptic number.

74863491 is a deficient number, since it is larger than the sum of its proper divisors (25219389).

74863491 is a wasteful number, since it uses less digits than its factorization.

74863491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66225.

The product of its digits is 145152, while the sum is 42.

The square root of 74863491 is about 8652.3690975362. The cubic root of 74863491 is about 421.4603191524.

The spelling of 74863491 in words is "seventy-four million, eight hundred sixty-three thousand, four hundred ninety-one".