1601487 has 6 divisors (see below), whose sum is σ = 2313272. Its totient is φ = 1067652.

The previous prime is 1601477. The next prime is 1601489. The reversal of 1601487 is 7841061.

It is a happy number.

It is not a de Polignac number, because 1601487 - 2⁶ = 1601423 is a prime.

It is a super-2 number, since 2×1601487² = 5129521222338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88963 + ... + 88980.

2^1601487 is an apocalyptic number.

1601487 is a deficient number, since it is larger than the sum of its proper divisors (711785).

1601487 is a wasteful number, since it uses less digits than its factorization.

1601487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177949 (or 177946 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1601487 is about 1265.4987159219. The cubic root of 1601487 is about 116.9969317626.

The spelling of 1601487 in words is "one million, six hundred one thousand, four hundred eighty-seven".