70598421 has 6 divisors (see below), whose sum is σ = 101975510. Its totient is φ = 47065608.

The previous prime is 70598417. The next prime is 70598447. The reversal of 70598421 is 12489507.

It can be written as a sum of positive squares in only one way, i.e., 62252100 + 8346321 = 7890^2 + 2889^2 .

It is not a de Polignac number, because 70598421 - 2² = 70598417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70598401) 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, 3922126 + ... + 3922143.

Almost surely, 2^70598421 is an apocalyptic number.

It is an amenable number.

70598421 is a deficient number, since it is larger than the sum of its proper divisors (31377089).

70598421 is a wasteful number, since it uses less digits than its factorization.

70598421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7844275 (or 7844272 counting only the distinct ones).

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

The square root of 70598421 is about 8402.2866530487. The cubic root of 70598421 is about 413.2996104265.

The spelling of 70598421 in words is "seventy million, five hundred ninety-eight thousand, four hundred twenty-one".