1970978 has 8 divisors (see below), whose sum is σ = 2975772. Its totient is φ = 979056.

The previous prime is 1970977. The next prime is 1970987. The reversal of 1970978 is 8790791.

It can be written as a sum of positive squares in 2 ways, for example, as 1885129 + 85849 = 1373^2 + 293^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1970977) 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, 2825 + ... + 3452.

2^1970978 is an apocalyptic number.

1970978 is a deficient number, since it is larger than the sum of its proper divisors (1004794).

1970978 is a wasteful number, since it uses less digits than its factorization.

1970978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 1970978 is about 1403.9152396067. The cubic root of 1970978 is about 125.3797093983.

The spelling of 1970978 in words is "one million, nine hundred seventy thousand, nine hundred seventy-eight".