1646498079 has 48 divisors (see below), whose sum is σ = 2566916352. Its totient is φ = 1014418944.

The previous prime is 1646498047. The next prime is 1646498081. The reversal of 1646498079 is 9708946461.

It is not a de Polignac number, because 1646498079 - 2⁵ = 1646498047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1646498089) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 862444 + ... + 864350.

It is an arithmetic number, because the mean of its divisors is an integer number (53477424).

Almost surely, 2^1646498079 is an apocalyptic number.

1646498079 is a deficient number, since it is larger than the sum of its proper divisors (920418273).

1646498079 is a wasteful number, since it uses less digits than its factorization.

1646498079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2073 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1646498079 is about 40577.0634595457. The cubic root of 1646498079 is about 1180.8291785284.

The spelling of 1646498079 in words is "one billion, six hundred forty-six million, four hundred ninety-eight thousand, seventy-nine".