1970651 has 4 divisors (see below), whose sum is σ = 1979712. Its totient is φ = 1961592.

The previous prime is 1970641. The next prime is 1970677. The reversal of 1970651 is 1560791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1560791 = 193 ⋅8087.

It is a cyclic number.

It is not a de Polignac number, because 1970651 - 2¹⁸ = 1708507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970621) 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, 4196 + ... + 4641.

It is an arithmetic number, because the mean of its divisors is an integer number (494928).

2^1970651 is an apocalyptic number.

1970651 is a deficient number, since it is larger than the sum of its proper divisors (9061).

1970651 is an equidigital number, since it uses as much as digits as its factorization.

1970651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9060.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1970651 is about 1403.7987747537. The cubic root of 1970651 is about 125.3727752041.

The spelling of 1970651 in words is "one million, nine hundred seventy thousand, six hundred fifty-one".