70954821 has 48 divisors (see below), whose sum is σ = 125483904. Its totient is φ = 37711872.

The previous prime is 70954817. The next prime is 70954831. The reversal of 70954821 is 12845907.

It is not a de Polignac number, because 70954821 - 2² = 70954817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70954831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103546 + ... + 104228.

It is an arithmetic number, because the mean of its divisors is an integer number (2614248).

Almost surely, 2^70954821 is an apocalyptic number.

It is an amenable number.

70954821 is a deficient number, since it is larger than the sum of its proper divisors (54529083).

70954821 is a wasteful number, since it uses less digits than its factorization.

70954821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 70954821 is about 8423.4684661367. The cubic root of 70954821 is about 413.9939262569.

The spelling of 70954821 in words is "seventy million, nine hundred fifty-four thousand, eight hundred twenty-one".