70627971 has 4 divisors (see below), whose sum is σ = 94170632. Its totient is φ = 47085312.

The previous prime is 70627939. The next prime is 70627993. The reversal of 70627971 is 17972607.

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

It is not a de Polignac number, because 70627971 - 2⁵ = 70627939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70627901) 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, 11771326 + ... + 11771331.

It is an arithmetic number, because the mean of its divisors is an integer number (23542658).

Almost surely, 2^70627971 is an apocalyptic number.

70627971 is a deficient number, since it is larger than the sum of its proper divisors (23542661).

70627971 is a wasteful number, since it uses less digits than its factorization.

70627971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23542660.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 70627971 is about 8404.0449189661. The cubic root of 70627971 is about 413.3572665787.

The spelling of 70627971 in words is "seventy million, six hundred twenty-seven thousand, nine hundred seventy-one".