74213899 has 2 divisors, whose sum is σ = 74213900. Its totient is φ = 74213898.

The previous prime is 74213861. The next prime is 74213903. The reversal of 74213899 is 99831247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74213899 - 2¹⁵ = 74181131 is a prime.

It is not a weakly prime, because it can be changed into another prime (74213099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37106949 + 37106950.

It is an arithmetic number, because the mean of its divisors is an integer number (37106950).

Almost surely, 2^74213899 is an apocalyptic number.

74213899 is a deficient number, since it is larger than the sum of its proper divisors (1).

74213899 is an equidigital number, since it uses as much as digits as its factorization.

74213899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 74213899 is about 8614.7489226326. The cubic root of 74213899 is about 420.2377697527.

It can be divided in two parts, 742 and 13899, that added together give a palindrome (14641).

The spelling of 74213899 in words is "seventy-four million, two hundred thirteen thousand, eight hundred ninety-nine".