1628612 has 6 divisors (see below), whose sum is σ = 2850078. Its totient is φ = 814304.

The previous prime is 1628603. The next prime is 1628621. The reversal of 1628612 is 2168261.

It is an interprime number because it is at equal distance from previous prime (1628603) and next prime (1628621).

It can be written as a sum of positive squares in only one way, i.e., 1577536 + 51076 = 1256^2 + 226^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203573 + ... + 203580.

It is an arithmetic number, because the mean of its divisors is an integer number (475013).

2^1628612 is an apocalyptic number.

It is an amenable number.

1628612 is a deficient number, since it is larger than the sum of its proper divisors (1221466).

1628612 is a wasteful number, since it uses less digits than its factorization.

1628612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407157 (or 407155 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 1628612 is about 1276.1708349590. The cubic root of 1628612 is about 117.6537778319.

The spelling of 1628612 in words is "one million, six hundred twenty-eight thousand, six hundred twelve".