70730487 has 12 divisors (see below), whose sum is σ = 102239280. Its totient is φ = 47119968.

The previous prime is 70730479. The next prime is 70730533. The reversal of 70730487 is 78403707.

It is a happy number.

It is not a de Polignac number, because 70730487 - 2³ = 70730479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70730417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22339 + ... + 25307.

It is an arithmetic number, because the mean of its divisors is an integer number (8519940).

Almost surely, 2^70730487 is an apocalyptic number.

70730487 is a deficient number, since it is larger than the sum of its proper divisors (31508793).

70730487 is a wasteful number, since it uses less digits than its factorization.

70730487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622 (or 5619 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 70730487 is about 8410.1419131903. The cubic root of 70730487 is about 413.5571649417.

It can be divided in two parts, 70730 and 487, that added together give a palindrome (71217).

The spelling of 70730487 in words is "seventy million, seven hundred thirty thousand, four hundred eighty-seven".