1964955 has 16 divisors (see below), whose sum is σ = 3177504. Its totient is φ = 1036800.

The previous prime is 1964951. The next prime is 1964969. The reversal of 1964955 is 5594691.

It is not a de Polignac number, because 1964955 - 2² = 1964951 is a prime.

It is a super-2 number, since 2×1964955² = 7722096304050, which contains 22 as substring.

1964955 is a lucky number.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1964951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (198594).

2^1964955 is an apocalyptic number.

1964955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1964955 is a deficient number, since it is larger than the sum of its proper divisors (1212549).

1964955 is a wasteful number, since it uses less digits than its factorization.

1964955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406.

The product of its digits is 48600, while the sum is 39.

The square root of 1964955 is about 1401.7685258273. The cubic root of 1964955 is about 125.2518655026.

It can be divided in two parts, 196 and 4955, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 1964955 in words is "one million, nine hundred sixty-four thousand, nine hundred fifty-five".