74645763 has 4 divisors (see below), whose sum is σ = 99527688. Its totient is φ = 49763840.

The previous prime is 74645743. The next prime is 74645771. The reversal of 74645763 is 36754647.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36754647 = 3 ⋅12251549.

It is a cyclic number.

It is not a de Polignac number, because 74645763 - 2¹⁶ = 74580227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74645713) 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, 12440958 + ... + 12440963.

It is an arithmetic number, because the mean of its divisors is an integer number (24881922).

Almost surely, 2^74645763 is an apocalyptic number.

74645763 is a deficient number, since it is larger than the sum of its proper divisors (24881925).

74645763 is a wasteful number, since it uses less digits than its factorization.

74645763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24881924.

The product of its digits is 423360, while the sum is 42.

The square root of 74645763 is about 8639.7779485355. Note that the first 3 decimals coincide. The cubic root of 74645763 is about 421.0513400226.

The spelling of 74645763 in words is "seventy-four million, six hundred forty-five thousand, seven hundred sixty-three".