7620166 has 4 divisors (see below), whose sum is σ = 11430252. Its totient is φ = 3810082.

The previous prime is 7620161. The next prime is 7620167. The reversal of 7620166 is 6610267.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6610267 = 359 ⋅18413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1905040 + ... + 1905043.

It is an arithmetic number, because the mean of its divisors is an integer number (2857563).

Almost surely, 2^7620166 is an apocalyptic number.

7620166 is a deficient number, since it is larger than the sum of its proper divisors (3810086).

7620166 is a wasteful number, since it uses less digits than its factorization.

7620166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810085.

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

The square root of 7620166 is about 2760.4648159323. The cubic root of 7620166 is about 196.7832568599.

It can be divided in two parts, 76201 and 66, that added together give a palindrome (76267).

The spelling of 7620166 in words is "seven million, six hundred twenty thousand, one hundred sixty-six".