70880072 has 16 divisors (see below), whose sum is σ = 140718060. Its totient is φ = 33355264.

The previous prime is 70880057. The next prime is 70880099. The reversal of 70880072 is 27008807.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62504836 + 8375236 = 7906^2 + 2894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260453 + ... + 260724.

Almost surely, 2^70880072 is an apocalyptic number.

It is an amenable number.

70880072 is a deficient number, since it is larger than the sum of its proper divisors (69837988).

70880072 is a wasteful number, since it uses less digits than its factorization.

70880072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521200 (or 521196 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 70880072 is about 8419.0303479676. The cubic root of 70880072 is about 413.8484980125.

Adding to 70880072 its reverse (27008807), we get a palindrome (97888879).

The spelling of 70880072 in words is "seventy million, eight hundred eighty thousand, seventy-two".