74861743 has 16 divisors (see below), whose sum is σ = 83266560. Its totient is φ = 66736800.

The previous prime is 74861687. The next prime is 74861747. The reversal of 74861743 is 34716847.

It is a cyclic number.

It is not a de Polignac number, because 74861743 - 2⁹ = 74861231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74861696 and 74861705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74861747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240558 + ... + 240868.

It is an arithmetic number, because the mean of its divisors is an integer number (5204160).

Almost surely, 2^74861743 is an apocalyptic number.

74861743 is a deficient number, since it is larger than the sum of its proper divisors (8404817).

74861743 is a wasteful number, since it uses less digits than its factorization.

74861743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 112896, while the sum is 40.

The square root of 74861743 is about 8652.2680841500. The cubic root of 74861743 is about 421.4570388781.

Subtracting from 74861743 its reverse (34716847), we obtain a square (40144896 = 6336²).

It can be divided in two parts, 7486 and 1743, that added together give a palindrome (9229).

The spelling of 74861743 in words is "seventy-four million, eight hundred sixty-one thousand, seven hundred forty-three".