4921965 has 24 divisors (see below), whose sum is σ = 8849568. Its totient is φ = 2624400.

The previous prime is 4921949. The next prime is 4922011. The reversal of 4921965 is 5691294.

It is not a de Polignac number, because 4921965 - 2⁴ = 4921949 is a prime.

It is a super-2 number, since 2×4921965² = 48451478922450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 811 + ... + 3240.

It is an arithmetic number, because the mean of its divisors is an integer number (368732).

Almost surely, 2^4921965 is an apocalyptic number.

4921965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4921965 is a deficient number, since it is larger than the sum of its proper divisors (3927603).

4921965 is an equidigital number, since it uses as much as digits as its factorization.

4921965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071 (or 4059 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 4921965 is about 2218.5502022717. The cubic root of 4921965 is about 170.1033397066.

It can be divided in two parts, 49219 and 65, that added together give a square (49284 = 222²).

The spelling of 4921965 in words is "four million, nine hundred twenty-one thousand, nine hundred sixty-five".