1964906 has 4 divisors (see below), whose sum is σ = 2947362. Its totient is φ = 982452.

The previous prime is 1964899. The next prime is 1964917. The reversal of 1964906 is 6094691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 128881 = 1355^2 + 359^2 .

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491225 + ... + 491228.

2^1964906 is an apocalyptic number.

1964906 is a deficient number, since it is larger than the sum of its proper divisors (982456).

1964906 is an equidigital number, since it uses as much as digits as its factorization.

1964906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982455.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1964906 is about 1401.7510477970. The cubic root of 1964906 is about 125.2508243605.

The spelling of 1964906 in words is "one million, nine hundred sixty-four thousand, nine hundred six".