2731970 has 16 divisors (see below), whose sum is σ = 4943160. Its totient is φ = 1087104.

The previous prime is 2731961. The next prime is 2731979. The reversal of 2731970 is 791372.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2731961) and next prime (2731979).

It can be written as a sum of positive squares in 4 ways, for example, as 2627641 + 104329 = 1621^2 + 323^2 .

It is not an unprimeable number, because it can be changed into a prime (2731979) 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, 1694 + ... + 2886.

2^2731970 is an apocalyptic number.

2731970 is a deficient number, since it is larger than the sum of its proper divisors (2211190).

2731970 is a wasteful number, since it uses less digits than its factorization.

2731970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 2731970 is about 1652.8672057972. The cubic root of 2731970 is about 139.7951084485.

The spelling of 2731970 in words is "two million, seven hundred thirty-one thousand, nine hundred seventy".