1007691 has 4 divisors (see below), whose sum is σ = 1343592. Its totient is φ = 671792.

The previous prime is 1007683. The next prime is 1007693. The reversal of 1007691 is 1967001.

1007691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1007691 - 2³ = 1007683 is a prime.

It is a D-number.

1007691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1007693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167946 + ... + 167951.

It is an arithmetic number, because the mean of its divisors is an integer number (335898).

2^1007691 is an apocalyptic number.

1007691 is a deficient number, since it is larger than the sum of its proper divisors (335901).

1007691 is an equidigital number, since it uses as much as digits as its factorization.

1007691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335900.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 1007691 is about 1003.8381343623. The cubic root of 1007691 is about 100.2557122219.

The spelling of 1007691 in words is "one million, seven thousand, six hundred ninety-one".