4027690 has 8 divisors (see below), whose sum is σ = 7249860. Its totient is φ = 1611072.

The previous prime is 4027687. The next prime is 4027693. The reversal of 4027690 is 967204.

It is an interprime number because it is at equal distance from previous prime (4027687) and next prime (4027693).

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 375769 = 1911^2 + 613^2 .

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

It is a super-2 number, since 2×4027690² = 32444573472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4027693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201375 + ... + 201394.

Almost surely, 2^4027690 is an apocalyptic number.

4027690 is a deficient number, since it is larger than the sum of its proper divisors (3222170).

4027690 is a wasteful number, since it uses less digits than its factorization.

4027690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402776.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4027690 is about 2006.9105610365. The cubic root of 4027690 is about 159.1055560046.

It can be divided in two parts, 40 and 27690, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 4027690 in words is "four million, twenty-seven thousand, six hundred ninety".