70249615 has 4 divisors (see below), whose sum is σ = 84299544. Its totient is φ = 56199688.

The previous prime is 70249603. The next prime is 70249633. The reversal of 70249615 is 51694207.

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 70249615 - 2⁹ = 70249103 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, 7024957 + ... + 7024966.

It is an arithmetic number, because the mean of its divisors is an integer number (21074886).

Almost surely, 2^70249615 is an apocalyptic number.

70249615 is a deficient number, since it is larger than the sum of its proper divisors (14049929).

70249615 is a wasteful number, since it uses less digits than its factorization.

70249615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14049928.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 70249615 is about 8381.5043399142. The cubic root of 70249615 is about 412.6178224803.

The spelling of 70249615 in words is "seventy million, two hundred forty-nine thousand, six hundred fifteen".