1661496 has 32 divisors (see below), whose sum is σ = 4199040. Its totient is φ = 547808.

The previous prime is 1661489. The next prime is 1661503. The reversal of 1661496 is 6941661.

1661496 = T₁₂₀ + T₁₂₁ + ... + T₂₂₆.

It is an interprime number because it is at equal distance from previous prime (1661489) and next prime (1661503).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245 + ... + 2891.

It is an arithmetic number, because the mean of its divisors is an integer number (131220).

2^1661496 is an apocalyptic number.

It is an amenable number.

1661496 is an abundant number, since it is smaller than the sum of its proper divisors (2537544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1661496 is a wasteful number, since it uses less digits than its factorization.

1661496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 759 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 1661496 is about 1288.9903025236. The cubic root of 1661496 is about 118.4403730712.

The spelling of 1661496 in words is "one million, six hundred sixty-one thousand, four hundred ninety-six".