1616797 has 16 divisors (see below), whose sum is σ = 2020480. Its totient is φ = 1259712.

The previous prime is 1616749. The next prime is 1616801. The reversal of 1616797 is 7976161.

It is a 5-Lehmer number, since φ(1616797) divides (1616797-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 1616797 - 2⁷ = 1616669 is a prime.

It is a super-2 number, since 2×1616797² = 5228065078418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9838 + ... + 10000.

It is an arithmetic number, because the mean of its divisors is an integer number (126280).

2^1616797 is an apocalyptic number.

It is an amenable number.

1616797 is a deficient number, since it is larger than the sum of its proper divisors (403683).

1616797 is a wasteful number, since it uses less digits than its factorization.

1616797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its digits is 15876, while the sum is 37.

The square root of 1616797 is about 1271.5333263426. The cubic root of 1616797 is about 117.3685749497.

The spelling of 1616797 in words is "one million, six hundred sixteen thousand, seven hundred ninety-seven".