1964967 has 8 divisors (see below), whose sum is σ = 2653440. Its totient is φ = 1293240.

The previous prime is 1964951. The next prime is 1964969. The reversal of 1964967 is 7694691.

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

It is not a de Polignac number, because 1964967 - 2⁴ = 1964951 is a prime.

It is a super-2 number, since 2×1964967² = 7722190622178, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964969) 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, 3909 + ... + 4382.

It is an arithmetic number, because the mean of its divisors is an integer number (331680).

2^1964967 is an apocalyptic number.

1964967 is a deficient number, since it is larger than the sum of its proper divisors (688473).

1964967 is an equidigital number, since it uses as much as digits as its factorization.

1964967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8373.

The product of its digits is 81648, while the sum is 42.

The square root of 1964967 is about 1401.7728061280. The cubic root of 1964967 is about 125.2521204736.

The spelling of 1964967 in words is "one million, nine hundred sixty-four thousand, nine hundred sixty-seven".