70784949 has 16 divisors (see below), whose sum is σ = 96235904. Its totient is φ = 46267200.

The previous prime is 70784947. The next prime is 70784953. The reversal of 70784949 is 94948707.

It is a happy number.

It is not a de Polignac number, because 70784949 - 2¹ = 70784947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70784898 and 70784907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70784947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111864 + ... + 112494.

It is an arithmetic number, because the mean of its divisors is an integer number (6014744).

Almost surely, 2^70784949 is an apocalyptic number.

It is an amenable number.

70784949 is a deficient number, since it is larger than the sum of its proper divisors (25450955).

70784949 is a wasteful number, since it uses less digits than its factorization.

70784949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 70784949 is about 8413.3791665418. The cubic root of 70784949 is about 413.6632831229.

The spelling of 70784949 in words is "seventy million, seven hundred eighty-four thousand, nine hundred forty-nine".