74578463 has 4 divisors (see below), whose sum is σ = 74596728. Its totient is φ = 74560200.

The previous prime is 74578457. The next prime is 74578513. The reversal of 74578463 is 36487547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74578463 - 2¹⁴ = 74562079 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 (74578403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (18649182).

Almost surely, 2^74578463 is an apocalyptic number.

74578463 is a deficient number, since it is larger than the sum of its proper divisors (18265).

74578463 is a wasteful number, since it uses less digits than its factorization.

74578463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18264.

The product of its digits is 564480, while the sum is 44.

The square root of 74578463 is about 8635.8822942419. The cubic root of 74578463 is about 420.9247631777.

The spelling of 74578463 in words is "seventy-four million, five hundred seventy-eight thousand, four hundred sixty-three".