70623387 has 8 divisors (see below), whose sum is σ = 104627280. Its totient is φ = 47082240.

The previous prime is 70623373. The next prime is 70623391. The reversal of 70623387 is 78332607.

It is not a de Polignac number, because 70623387 - 2¹² = 70619291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70623337) 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, 1307814 + ... + 1307867.

It is an arithmetic number, because the mean of its divisors is an integer number (13078410).

Almost surely, 2^70623387 is an apocalyptic number.

70623387 is a deficient number, since it is larger than the sum of its proper divisors (34003893).

70623387 is a wasteful number, since it uses less digits than its factorization.

70623387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615690 (or 2615684 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 70623387 is about 8403.7721887257. The cubic root of 70623387 is about 413.3483236123.

The spelling of 70623387 in words is "seventy million, six hundred twenty-three thousand, three hundred eighty-seven".