1663070 has 16 divisors (see below), whose sum is σ = 3151440. Its totient is φ = 630144.

The previous prime is 1663031. The next prime is 1663073. The reversal of 1663070 is 703661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663073) 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, 4187 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (196965).

2^1663070 is an apocalyptic number.

1663070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663070 is a deficient number, since it is larger than the sum of its proper divisors (1488370).

1663070 is a wasteful number, since it uses less digits than its factorization.

1663070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8779.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1663070 is about 1289.6007133993. The cubic root of 1663070 is about 118.4777623294.

The spelling of 1663070 in words is "one million, six hundred sixty-three thousand, seventy".