74721101 has 16 divisors (see below), whose sum is σ = 92179584. Its totient is φ = 58981824.

The previous prime is 74721083. The next prime is 74721109. The reversal of 74721101 is 10112747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74721101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74721109) 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 15 ways as a sum of consecutive naturals, for example, 57875 + ... + 59151.

It is an arithmetic number, because the mean of its divisors is an integer number (5761224).

Almost surely, 2^74721101 is an apocalyptic number.

It is an amenable number.

74721101 is a deficient number, since it is larger than the sum of its proper divisors (17458483).

74721101 is a wasteful number, since it uses less digits than its factorization.

74721101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 74721101 is about 8644.1367990101. The cubic root of 74721101 is about 421.1929443986.

Adding to 74721101 its reverse (10112747), we get a palindrome (84833848).

The spelling of 74721101 in words is "seventy-four million, seven hundred twenty-one thousand, one hundred one".