70314991 has 4 divisors (see below), whose sum is σ = 74015800. Its totient is φ = 66614184.

The previous prime is 70314983. The next prime is 70314997. The reversal of 70314991 is 19941307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19941307 = 389 ⋅51263.

It is a cyclic number.

It is not a de Polignac number, because 70314991 - 2³ = 70314983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70314997) 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, 1850376 + ... + 1850413.

It is an arithmetic number, because the mean of its divisors is an integer number (18503950).

Almost surely, 2^70314991 is an apocalyptic number.

70314991 is a deficient number, since it is larger than the sum of its proper divisors (3700809).

70314991 is a wasteful number, since it uses less digits than its factorization.

70314991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700808.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 70314991 is about 8385.4034488509. The cubic root of 70314991 is about 412.7457801881.

The spelling of 70314991 in words is "seventy million, three hundred fourteen thousand, nine hundred ninety-one".