70624609 has 8 divisors (see below), whose sum is σ = 77105952. Its totient is φ = 64153440.

The previous prime is 70624583. The next prime is 70624621. The reversal of 70624609 is 90642607.

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 70624609 - 2¹⁷ = 70493537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70624639) 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, 24982 + ... + 27664.

It is an arithmetic number, because the mean of its divisors is an integer number (9638244).

Almost surely, 2^70624609 is an apocalyptic number.

It is an amenable number.

70624609 is a deficient number, since it is larger than the sum of its proper divisors (6481343).

70624609 is a wasteful number, since it uses less digits than its factorization.

70624609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 70624609 is about 8403.8448938566. The cubic root of 70624609 is about 413.3507076608.

The spelling of 70624609 in words is "seventy million, six hundred twenty-four thousand, six hundred nine".