70917049 has 16 divisors (see below), whose sum is σ = 84093696. Its totient is φ = 58536000.

The previous prime is 70917043. The next prime is 70917053. The reversal of 70917049 is 94071907.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70917049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70916999 and 70917017.

It is not an unprimeable number, because it can be changed into a prime (70917043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24804 + ... + 27514.

It is an arithmetic number, because the mean of its divisors is an integer number (5255856).

Almost surely, 2^70917049 is an apocalyptic number.

It is an amenable number.

70917049 is a deficient number, since it is larger than the sum of its proper divisors (13176647).

70917049 is a wasteful number, since it uses less digits than its factorization.

70917049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 70917049 is about 8421.2260983778. The cubic root of 70917049 is about 413.9204515492.

The spelling of 70917049 in words is "seventy million, nine hundred seventeen thousand, forty-nine".