1641634 has 8 divisors (see below), whose sum is σ = 2499408. Its totient is φ = 808500.

The previous prime is 1641631. The next prime is 1641637. The reversal of 1641634 is 4361461.

It is an interprime number because it is at equal distance from previous prime (1641631) and next prime (1641637).

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

It is a junction number, because it is equal to n+sod(n) for n = 1641599 and 1641608.

It is not an unprimeable number, because it can be changed into a prime (1641631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5992 + ... + 6259.

It is an arithmetic number, because the mean of its divisors is an integer number (312426).

2^1641634 is an apocalyptic number.

1641634 is a deficient number, since it is larger than the sum of its proper divisors (857774).

1641634 is a wasteful number, since it uses less digits than its factorization.

1641634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320.

The product of its digits is 1728, while the sum is 25.

The square root of 1641634 is about 1281.2626584741. The cubic root of 1641634 is about 117.9665231090.

The spelling of 1641634 in words is "one million, six hundred forty-one thousand, six hundred thirty-four".