7070991 has 4 divisors (see below), whose sum is σ = 9427992. Its totient is φ = 4713992.

The previous prime is 7070977. The next prime is 7070993. The reversal of 7070991 is 1990707.

7070991 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 1990707 = 3 ⋅663569.

It is a cyclic number.

It is not a de Polignac number, because 7070991 - 2⁷ = 7070863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7070993) 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, 1178496 + ... + 1178501.

It is an arithmetic number, because the mean of its divisors is an integer number (2356998).

Almost surely, 2^7070991 is an apocalyptic number.

7070991 is a deficient number, since it is larger than the sum of its proper divisors (2357001).

7070991 is a wasteful number, since it uses less digits than its factorization.

7070991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357000.

The product of its (nonzero) digits is 3969, while the sum is 33.

The square root of 7070991 is about 2659.1335054863. The cubic root of 7070991 is about 191.9376153659.

The spelling of 7070991 in words is "seven million, seventy thousand, nine hundred ninety-one".