1407506 has 4 divisors (see below), whose sum is σ = 2111262. Its totient is φ = 703752.

The previous prime is 1407503. The next prime is 1407533. The reversal of 1407506 is 6057041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6057041 = 227 ⋅26683.

It can be written as a sum of positive squares in only one way, i.e., 1301881 + 105625 = 1141^2 + 325^2 .

It is not an unprimeable number, because it can be changed into a prime (1407503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351875 + ... + 351878.

2^1407506 is an apocalyptic number.

1407506 is a deficient number, since it is larger than the sum of its proper divisors (703756).

1407506 is an equidigital number, since it uses as much as digits as its factorization.

1407506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703755.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1407506 is about 1186.3835804663. The cubic root of 1407506 is about 112.0684636680.

The spelling of 1407506 in words is "one million, four hundred seven thousand, five hundred six".