7961550 has 24 divisors (see below), whose sum is σ = 19745016. Its totient is φ = 2123040.

The previous prime is 7961539. The next prime is 7961557. The reversal of 7961550 is 551697.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7961557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26389 + ... + 26688.

It is an arithmetic number, because the mean of its divisors is an integer number (822709).

Almost surely, 2^7961550 is an apocalyptic number.

7961550 is an abundant number, since it is smaller than the sum of its proper divisors (11783466).

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

7961550 is a wasteful number, since it uses less digits than its factorization.

7961550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53092 (or 53087 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 7961550 is about 2821.6218740292. The cubic root of 7961550 is about 199.6790686241.

It can be divided in two parts, 796 and 1550, that added together give a triangular number (2346 = T₆₈).

The spelling of 7961550 in words is "seven million, nine hundred sixty-one thousand, five hundred fifty".