74143797 has 32 divisors (see below), whose sum is σ = 122922240. Its totient is φ = 38707200.

The previous prime is 74143781. The next prime is 74143799. The reversal of 74143797 is 79734147.

It is not a de Polignac number, because 74143797 - 2⁴ = 74143781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74143799) 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 31 ways as a sum of consecutive naturals, for example, 26229 + ... + 28917.

It is an arithmetic number, because the mean of its divisors is an integer number (3841320).

Almost surely, 2^74143797 is an apocalyptic number.

It is an amenable number.

74143797 is a deficient number, since it is larger than the sum of its proper divisors (48778443).

74143797 is a wasteful number, since it uses less digits than its factorization.

74143797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813.

The product of its digits is 148176, while the sum is 42.

The square root of 74143797 is about 8610.6792415001. The cubic root of 74143797 is about 420.1054100503.

It can be divided in two parts, 7414 and 3797, that added together give a palindrome (11211).

The spelling of 74143797 in words is "seventy-four million, one hundred forty-three thousand, seven hundred ninety-seven".