1628214086 has 4 divisors (see below), whose sum is σ = 2442321132. Its totient is φ = 814107042.

The previous prime is 1628214073. The next prime is 1628214127. The reversal of 1628214086 is 6804128261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1628214086² = 5302162219697630792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407053520 + ... + 407053523.

It is an arithmetic number, because the mean of its divisors is an integer number (610580283).

Almost surely, 2^1628214086 is an apocalyptic number.

1628214086 is a deficient number, since it is larger than the sum of its proper divisors (814107046).

1628214086 is an equidigital number, since it uses as much as digits as its factorization.

1628214086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814107045.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1628214086 is about 40351.1348787119. The cubic root of 1628214086 is about 1176.4419505048.

The spelling of 1628214086 in words is "one billion, six hundred twenty-eight million, two hundred fourteen thousand, eighty-six".