75223736 has 72 divisors (see below), whose sum is σ = 172958760. Its totient is φ = 30041280.

The previous prime is 75223711. The next prime is 75223739. The reversal of 75223736 is 63732257.

It is a super-2 number, since 2×75223736² = 11317220915595392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75223696 and 75223705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75223739) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1233146 + ... + 1233206.

It is an arithmetic number, because the mean of its divisors is an integer number (2402205).

Almost surely, 2^75223736 is an apocalyptic number.

75223736 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75223736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86479380).

75223736 is an abundant number, since it is smaller than the sum of its proper divisors (97735024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75223736 is a wasteful number, since it uses less digits than its factorization.

75223736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 89 counting only the distinct ones).

The product of its digits is 52920, while the sum is 35.

The square root of 75223736 is about 8673.1618225420. The cubic root of 75223736 is about 422.1352635732.

The spelling of 75223736 in words is "seventy-five million, two hundred twenty-three thousand, seven hundred thirty-six".