70621371 has 6 divisors (see below), whose sum is σ = 102008660. Its totient is φ = 47080908.

The previous prime is 70621367. The next prime is 70621399. The reversal of 70621371 is 17312607.

70621371 is a `hidden beast` number, since 7 + 0 + 621 + 37 + 1 = 666.

It is not a de Polignac number, because 70621371 - 2² = 70621367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70621301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3923401 + ... + 3923418.

Almost surely, 2^70621371 is an apocalyptic number.

70621371 is a deficient number, since it is larger than the sum of its proper divisors (31387289).

70621371 is a wasteful number, since it uses less digits than its factorization.

70621371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846825 (or 7846822 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 70621371 is about 8403.6522417339. The cubic root of 70621371 is about 413.3443904575.

Adding to 70621371 its reverse (17312607), we get a palindrome (87933978).

The spelling of 70621371 in words is "seventy million, six hundred twenty-one thousand, three hundred seventy-one".