8422690 has 16 divisors (see below), whose sum is σ = 15214392. Its totient is φ = 3357184.

The previous prime is 8422649. The next prime is 8422691. The reversal of 8422690 is 962248.

It can be written as a sum of positive squares in 4 ways, for example, as 5257849 + 3164841 = 2293^2 + 1779^2 .

It is a super-2 number, since 2×8422690² = 141883413672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8422691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1842 + ... + 4498.

Almost surely, 2^8422690 is an apocalyptic number.

8422690 is a deficient number, since it is larger than the sum of its proper divisors (6791702).

8422690 is a wasteful number, since it uses less digits than its factorization.

8422690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 8422690 is about 2902.1871063045. The cubic root of 8422690 is about 203.4621388190.

The spelling of 8422690 in words is "eight million, four hundred twenty-two thousand, six hundred ninety".