1976345 has 8 divisors (see below), whose sum is σ = 2710464. Its totient is φ = 1355184.

The previous prime is 1976333. The next prime is 1976347. The reversal of 1976345 is 5436791.

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

It is a cyclic number.

It is not a de Polignac number, because 1976345 - 2¹⁰ = 1975321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 56467 = 1976345 / (1 + 9 + 7 + 6 + 3 + 4 + 5).

It is a d-powerful number, because it can be written as 1 + 9 + 7² + 6³ + 3⁸ + 4⁷ + 5⁹ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1976347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28199 + ... + 28268.

It is an arithmetic number, because the mean of its divisors is an integer number (338808).

2^1976345 is an apocalyptic number.

It is an amenable number.

1976345 is a deficient number, since it is larger than the sum of its proper divisors (734119).

1976345 is an equidigital number, since it uses as much as digits as its factorization.

1976345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56479.

The product of its digits is 22680, while the sum is 35.

The square root of 1976345 is about 1405.8253803371. The cubic root of 1976345 is about 125.4934098115.

The spelling of 1976345 in words is "one million, nine hundred seventy-six thousand, three hundred forty-five".