1915964 has 6 divisors (see below), whose sum is σ = 3352944. Its totient is φ = 957980.

The previous prime is 1915961. The next prime is 1915981. The reversal of 1915964 is 4695191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1915961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239492 + ... + 239499.

It is an arithmetic number, because the mean of its divisors is an integer number (558824).

2^1915964 is an apocalyptic number.

It is an amenable number.

1915964 is a deficient number, since it is larger than the sum of its proper divisors (1436980).

1915964 is a wasteful number, since it uses less digits than its factorization.

1915964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478995 (or 478993 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 1915964 is about 1384.1835138449. The cubic root of 1915964 is about 124.2021503220.

The spelling of 1915964 in words is "one million, nine hundred fifteen thousand, nine hundred sixty-four".