690355412 has 12 divisors (see below), whose sum is σ = 1208628960. Its totient is φ = 345032856.

The previous prime is 690355409. The next prime is 690355423. The reversal of 690355412 is 214553096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25112 + ... + 44847.

It is an arithmetic number, because the mean of its divisors is an integer number (100719080).

Almost surely, 2^690355412 is an apocalyptic number.

It is an amenable number.

690355412 is a deficient number, since it is larger than the sum of its proper divisors (518273548).

690355412 is a wasteful number, since it uses less digits than its factorization.

690355412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72430 (or 72428 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 690355412 is about 26274.6153539876. The cubic root of 690355412 is about 883.8072868749.

It can be divided in two parts, 69035 and 5412, that added together give a palindrome (74447).

The spelling of 690355412 in words is "six hundred ninety million, three hundred fifty-five thousand, four hundred twelve".