7661480 has 16 divisors (see below), whose sum is σ = 17238420. Its totient is φ = 3064576.

The previous prime is 7661473. The next prime is 7661483. The reversal of 7661480 is 841667.

It can be written as a sum of positive squares in 2 ways, for example, as 7496644 + 164836 = 2738^2 + 406^2 .

It is not an unprimeable number, because it can be changed into a prime (7661483) 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 3 ways as a sum of consecutive naturals, for example, 95729 + ... + 95808.

Almost surely, 2^7661480 is an apocalyptic number.

It is an amenable number.

7661480 is an abundant number, since it is smaller than the sum of its proper divisors (9576940).

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

7661480 is a wasteful number, since it uses less digits than its factorization.

7661480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191548 (or 191544 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7661480 is about 2767.9378605742. The cubic root of 7661480 is about 197.1382471592.

The spelling of 7661480 in words is "seven million, six hundred sixty-one thousand, four hundred eighty".