7661020 has 12 divisors (see below), whose sum is σ = 16088184. Its totient is φ = 3064400.

The previous prime is 7660993. The next prime is 7661029. The reversal of 7661020 is 201667.

It is a junction number, because it is equal to n+sod(n) for n = 7660982 and 7661000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191506 + ... + 191545.

It is an arithmetic number, because the mean of its divisors is an integer number (1340682).

Almost surely, 2^7661020 is an apocalyptic number.

It is an amenable number.

7661020 is an abundant number, since it is smaller than the sum of its proper divisors (8427164).

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

7661020 is a wasteful number, since it uses less digits than its factorization.

7661020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383060 (or 383058 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7661020 is about 2767.8547649759. The cubic root of 7661020 is about 197.1343016461.

Adding to 7661020 its reverse (201667), we get a palindrome (7862687).

The spelling of 7661020 in words is "seven million, six hundred sixty-one thousand, twenty".