70503660 has 72 divisors (see below), whose sum is σ = 218858640. Its totient is φ = 18361728.

The previous prime is 70503647. The next prime is 70503673. The reversal of 70503660 is 6630507.

It is an interprime number because it is at equal distance from previous prime (70503647) and next prime (70503673).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3186 + ... + 12294.

Almost surely, 2^70503660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70503660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109429320).

70503660 is an abundant number, since it is smaller than the sum of its proper divisors (148354980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70503660 is a wasteful number, since it uses less digits than its factorization.

70503660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9167 (or 9162 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 70503660 is about 8396.6457588730. The cubic root of 70503660 is about 413.1146099695.

The spelling of 70503660 in words is "seventy million, five hundred three thousand, six hundred sixty".