7973550 has 144 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 1854720.

The previous prime is 7973543. The next prime is 7973591. The reversal of 7973550 is 553797.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 7³ + 9 + 7⁸ + 3¹¹ + 5⁷ + 5⁹ + 0 .

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 169627 + ... + 169673.

It is an arithmetic number, because the mean of its divisors is an integer number (169260).

Almost surely, 2^7973550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7973550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12186720).

7973550 is an abundant number, since it is smaller than the sum of its proper divisors (16399890).

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

7973550 is a wasteful number, since it uses less digits than its factorization.

7973550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 7973550 is about 2823.7475099591. The cubic root of 7973550 is about 199.7793399686.

The spelling of 7973550 in words is "seven million, nine hundred seventy-three thousand, five hundred fifty".