70911812 has 6 divisors (see below), whose sum is σ = 124095678. Its totient is φ = 35455904.

The previous prime is 70911791. The next prime is 70911833. The reversal of 70911812 is 21811907.

70911812 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (70911791) and next prime (70911833).

It can be written as a sum of positive squares in only one way, i.e., 61089856 + 9821956 = 7816^2 + 3134^2 .

It is a super-2 number, since 2×70911812² = 10056970162246688, which contains 22 as substring.

70911812 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8863973 + ... + 8863980.

It is an arithmetic number, because the mean of its divisors is an integer number (20682613).

Almost surely, 2^70911812 is an apocalyptic number.

It is an amenable number.

70911812 is a deficient number, since it is larger than the sum of its proper divisors (53183866).

70911812 is a wasteful number, since it uses less digits than its factorization.

70911812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17727957 (or 17727955 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 70911812 is about 8420.9151521673. The cubic root of 70911812 is about 413.9102623925.

It can be divided in two parts, 709 and 11812, that added together give a palindrome (12521).

The spelling of 70911812 in words is "seventy million, nine hundred eleven thousand, eight hundred twelve".