70623620 has 12 divisors (see below), whose sum is σ = 148309644. Its totient is φ = 28249440.

The previous prime is 70623601. The next prime is 70623677. The reversal of 70623620 is 2632607.

It can be written as a sum of positive squares in 2 ways, for example, as 15507844 + 55115776 = 3938^2 + 7424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70623620.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1765571 + ... + 1765610.

It is an arithmetic number, because the mean of its divisors is an integer number (12359137).

Almost surely, 2^70623620 is an apocalyptic number.

It is an amenable number.

70623620 is an abundant number, since it is smaller than the sum of its proper divisors (77686024).

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

70623620 is a wasteful number, since it uses less digits than its factorization.

70623620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531190 (or 3531188 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 70623620 is about 8403.7860515365. The cubic root of 70623620 is about 413.3487781834.

The spelling of 70623620 in words is "seventy million, six hundred twenty-three thousand, six hundred twenty".