1426667 has 8 divisors (see below), whose sum is σ = 1624320. Its totient is φ = 1240360.

The previous prime is 1426643. The next prime is 1426669. The reversal of 1426667 is 7666241.

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

It is not a de Polignac number, because 1426667 - 2¹⁶ = 1361131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1426669) 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, 2567 + ... + 3072.

It is an arithmetic number, because the mean of its divisors is an integer number (203040).

2^1426667 is an apocalyptic number.

1426667 is a deficient number, since it is larger than the sum of its proper divisors (197653).

1426667 is a wasteful number, since it uses less digits than its factorization.

1426667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its digits is 12096, while the sum is 32.

The square root of 1426667 is about 1194.4316640143. The cubic root of 1426667 is about 112.5747190871.

The spelling of 1426667 in words is "one million, four hundred twenty-six thousand, six hundred sixty-seven".