1979275 has 12 divisors (see below), whose sum is σ = 2515464. Its totient is φ = 1544000.

The previous prime is 1979269. The next prime is 1979281. The reversal of 1979275 is 5729791.

1979275 = T₂₉₀ + T₂₉₁ + ... + T₃₃₀.

It is an interprime number because it is at equal distance from previous prime (1979269) and next prime (1979281).

It is not a de Polignac number, because 1979275 - 2⁷ = 1979147 is a prime.

It is a Duffinian number.

1979275 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60 + ... + 1990.

It is an arithmetic number, because the mean of its divisors is an integer number (209622).

2^1979275 is an apocalyptic number.

1979275 is a deficient number, since it is larger than the sum of its proper divisors (536189).

1979275 is a wasteful number, since it uses less digits than its factorization.

1979275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1977 counting only the distinct ones).

The product of its digits is 39690, while the sum is 40.

The square root of 1979275 is about 1406.8670868280. The cubic root of 1979275 is about 125.5553953003. Note that the first 3 decimals are identical.

The spelling of 1979275 in words is "one million, nine hundred seventy-nine thousand, two hundred seventy-five".