74698789 has 4 divisors (see below), whose sum is σ = 81489600. Its totient is φ = 67907980.

The previous prime is 74698787. The next prime is 74698817. The reversal of 74698789 is 98789647.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74698789 - 2¹ = 74698787 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 (74698781) 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, 3395389 + ... + 3395410.

It is an arithmetic number, because the mean of its divisors is an integer number (20372400).

Almost surely, 2^74698789 is an apocalyptic number.

It is an amenable number.

74698789 is a deficient number, since it is larger than the sum of its proper divisors (6790811).

74698789 is a wasteful number, since it uses less digits than its factorization.

74698789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790810.

The product of its digits is 6096384, while the sum is 58.

The square root of 74698789 is about 8642.8461168761. The cubic root of 74698789 is about 421.1510169626.

The spelling of 74698789 in words is "seventy-four million, six hundred ninety-eight thousand, seven hundred eighty-nine".