70421101 has 16 divisors (see below), whose sum is σ = 76454784. Its totient is φ = 64684224.

The previous prime is 70421093. The next prime is 70421107. The reversal of 70421101 is 10112407.

It is not a de Polignac number, because 70421101 - 2³ = 70421093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70421107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70135 + ... + 71131.

It is an arithmetic number, because the mean of its divisors is an integer number (4778424).

Almost surely, 2^70421101 is an apocalyptic number.

It is an amenable number.

70421101 is a deficient number, since it is larger than the sum of its proper divisors (6033683).

70421101 is a wasteful number, since it uses less digits than its factorization.

70421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 70421101 is about 8391.7281295333. The cubic root of 70421101 is about 412.9532961197.

Adding to 70421101 its reverse (10112407), we get a palindrome (80533508).

The spelling of 70421101 in words is "seventy million, four hundred twenty-one thousand, one hundred one".