70487321 has 8 divisors (see below), whose sum is σ = 78562080. Its totient is φ = 62849088.

The previous prime is 70487311. The next prime is 70487327. The reversal of 70487321 is 12378407.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70487321 - 2²⁶ = 3378457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70487327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108791 + ... + 109436.

It is an arithmetic number, because the mean of its divisors is an integer number (9820260).

Almost surely, 2^70487321 is an apocalyptic number.

It is an amenable number.

70487321 is a deficient number, since it is larger than the sum of its proper divisors (8074759).

70487321 is a wasteful number, since it uses less digits than its factorization.

70487321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218263.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 70487321 is about 8395.6727544611. The cubic root of 70487321 is about 413.0826948363.

The spelling of 70487321 in words is "seventy million, four hundred eighty-seven thousand, three hundred twenty-one".