70390051 has 8 divisors (see below), whose sum is σ = 73599264. Its totient is φ = 67193280.

The previous prime is 70390049. The next prime is 70390069. The reversal of 70390051 is 15009307.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70390051 - 2¹ = 70390049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70389998 and 70390025.

It is not an unprimeable number, because it can be changed into a prime (70390091) 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, 9615 + ... + 15271.

It is an arithmetic number, because the mean of its divisors is an integer number (9199908).

Almost surely, 2^70390051 is an apocalyptic number.

70390051 is a deficient number, since it is larger than the sum of its proper divisors (3209213).

70390051 is a wasteful number, since it uses less digits than its factorization.

70390051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 70390051 is about 8389.8778894570. The cubic root of 70390051 is about 412.8925942153.

Adding to 70390051 its reverse (15009307), we get a palindrome (85399358).

The spelling of 70390051 in words is "seventy million, three hundred ninety thousand, fifty-one".