70814215 has 4 divisors (see below), whose sum is σ = 84977064. Its totient is φ = 56651368.

The previous prime is 70814207. The next prime is 70814221. The reversal of 70814215 is 51241807.

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 70814215 - 2³ = 70814207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7081417 + ... + 7081426.

It is an arithmetic number, because the mean of its divisors is an integer number (21244266).

Almost surely, 2^70814215 is an apocalyptic number.

70814215 is a deficient number, since it is larger than the sum of its proper divisors (14162849).

70814215 is a wasteful number, since it uses less digits than its factorization.

70814215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14162848.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 70814215 is about 8415.1182404052. The cubic root of 70814215 is about 413.7202848902.

The spelling of 70814215 in words is "seventy million, eight hundred fourteen thousand, two hundred fifteen".