1970787 has 16 divisors (see below), whose sum is σ = 3234560. Its totient is φ = 1039392.

The previous prime is 1970783. The next prime is 1970791. The reversal of 1970787 is 7870791.

It is a happy number.

1970787 is nontrivially palindromic in base 9.

It is an interprime number because it is at equal distance from previous prime (1970783) and next prime (1970791).

It is not a de Polignac number, because 1970787 - 2² = 1970783 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1970783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3337 + ... + 3882.

It is an arithmetic number, because the mean of its divisors is an integer number (202160).

2^1970787 is an apocalyptic number.

1970787 is a deficient number, since it is larger than the sum of its proper divisors (1263773).

1970787 is a wasteful number, since it uses less digits than its factorization.

1970787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242.

The product of its (nonzero) digits is 24696, while the sum is 39.

The square root of 1970787 is about 1403.8472139090. The cubic root of 1970787 is about 125.3756592435.

The spelling of 1970787 in words is "one million, nine hundred seventy thousand, seven hundred eighty-seven".