1961367 has 4 divisors (see below), whose sum is σ = 2615160. Its totient is φ = 1307576.

The previous prime is 1961363. The next prime is 1961381. The reversal of 1961367 is 7631691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1961367 - 2² = 1961363 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961363) 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, 326892 + ... + 326897.

It is an arithmetic number, because the mean of its divisors is an integer number (653790).

2^1961367 is an apocalyptic number.

1961367 is a deficient number, since it is larger than the sum of its proper divisors (653793).

1961367 is an equidigital number, since it uses as much as digits as its factorization.

1961367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653792.

The product of its digits is 6804, while the sum is 33.

The square root of 1961367 is about 1400.4881291892. The cubic root of 1961367 is about 125.1755825839.

The spelling of 1961367 in words is "one million, nine hundred sixty-one thousand, three hundred sixty-seven".