7620490 has 8 divisors (see below), whose sum is σ = 13716900. Its totient is φ = 3048192.

The previous prime is 7620469. The next prime is 7620491. The reversal of 7620490 is 940267.

It can be written as a sum of positive squares in 2 ways, for example, as 7392961 + 227529 = 2719^2 + 477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7620491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381015 + ... + 381034.

Almost surely, 2^7620490 is an apocalyptic number.

7620490 is a deficient number, since it is larger than the sum of its proper divisors (6096410).

7620490 is a wasteful number, since it uses less digits than its factorization.

7620490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762056.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 7620490 is about 2760.5235010773. The cubic root of 7620490 is about 196.7860458136.

The spelling of 7620490 in words is "seven million, six hundred twenty thousand, four hundred ninety".